Message Board Search Tool
Banding Code Translator | Recent Rare Bird Sightings
©2018 Christopher Taylor (Kiwifoto.com)
Help Support!
calbirds        search ebird rarities [plot]
filter rba/cbc

  11 result(s) found...Displaying messages 1 through 11, sorted by date descending.
 

 Month/Year Breakdown (Top 15):

 Dec, 2017 - 6 e-mail(s)...
 Jan, 2018 - 3 e-mail(s)...
 May, 2018 - 2 e-mail(s)...




   Citrine Wagtail (Motacilla citreola) - CIWA (recent eBird sightings, view CBRC records)

  1. RE: [CALBIRDS] CBRC News: Two new species accepted to CA list LINK
    DATE: May 14, 2018 @ 6:55pm, 36 day(s) ago
    Kimball et al.
    
    There is a recent paper that resolves the Citrine Wagtail issue:
    
    Drovetski et. Al. 2018. Multi-locus reassessment of a striking discord
    
    between mtDNA gene trees and taxonomy across two congeneric species
    
    complexes. Molecular Phylogenetics and Evolution 120 (2018) 43-52.
    
    https://www.sciencedirect.com/science/article/pii/S1055790317304347via%3Dih
    
    ub
    
    They suggest that the mitochondrial data misrepresents the actual
    
    evolutionary history of the lineages, but sorts out on geography. But the
    
    multi-locus data confirm the traditional taxonomy. The bottom line is, that
    
    the Old School taxonomy is correct, and for birders that means that if it
    
    looks like a Citrine Wagtail, it is a Citrine Wagtail.
    
    Regards
    
    Alvaro
    
    Alvaro Jaramillo
    
    alvaro@...
    
    www.alvarosadventures.com
    
    From: CALBIRDS@yahoogroups.com < CALBIRDS@yahoogroups.com > On Behalf Of
    
    Kimball Garrett kgarrett@... [CALBIRDS]
    
    Sent: Monday, May 14, 2018 2:57 PM
    
    To: CALBIRDS@yahoogroups.com
    
    Subject: [CALBIRDS] CBRC News: Two new species accepted to CA list
    
    Birders,
    
    The California Bird Records Committee has accepted records of two species
    
    new to the California state list:
    
    Band-rumped Storm-Petrel (Oceanodroma castro) at SE Farallon Island, San
    
    Francisco Co., 10-11 Nov 2017 (2017-130); and
    
    Citrine Wagtail (Motacilla citreola) at Yolo Bypass, Yolo Co., 15-16 Dec
    
    2017 (2017-160)
    
    Note that each of these species comes with taxonomic uncertainties.
    
    "Band-rumped Storm-Petrel" may represent a complex of several species; there
    
    are perhaps four distinct populations within the Pacific Ocean alone, and
    
    each of these differs from the up-to-five distinct taxa in the Atlantic
    
    Ocean (see Petrels, Albatrosses and Storm-Petrels of North America by S. N.
    
    G. Howell, Princeton Univ. Press, 2012). Citrine Wagtail and
    
    Eastern/Western Yellow Wagtails form another confusing complex (see Pipits
    
    and Wagtails by P. Alstrom and K. Mild, Princeton Univ. Press, 2003); mtDNA
    
    work had suggested that the two clades of Citrine Wagtail were each more
    
    closely related to different Yellow Wagtail clades than to each other, but
    
    nuclear DNA work appears to confirm the distinctness, and monophyly, of
    
    Citrine Wagtail.
    
    Another potential state first, a Hawfinch (Coccothraustes coccothraustes)
    
    aboard a ship offshore of San Luis Obispo and Santa Barbara Counties, 17 May
    
    2016 (2016-150), was not accepted due to questionable natural occurrence.
    
    The addition of the storm-petrel and wagtail brings the California state
    
    list to 671 species. Thanks to Joe Morlan, the CBRC web site has already
    
    been updated with this information: https://www.californiabirds.org/
    
    Kimball L. Garrett
    
    [CBRC Spokesperson]
    
    Natural History Museum of Los Angeles County
    
    900 Exposition Blvd.
    
    Los Angeles, CA 90007 USA
    
    kgarrett@...
    
    
  2. -back to top-
  3. CBRC News: Two new species accepted to CA list LINK
    DATE: May 14, 2018 @ 2:56pm, 36 day(s) ago
    Birders,   The California Bird Records Committee has accepted records of two species new to the California state list:   Band-rumped Storm-Petrel ( Oceanodroma castro ) at SE Farallon Island, San Francisco Co., 10-11 Nov 2017 (2017-130); and Citrine Wagtail ( Motacilla citreola ) at Yolo Bypass, Yolo Co., 15-16 Dec 2017 (2017-160)
      Note that each of these species comes with taxonomic uncertainties.  “Band-rumped Storm-Petrel” may represent a complex of several species; there are perhaps four distinct
    populations within the Pacific Ocean alone, and each of these differs from the up-to-five distinct taxa in the Atlantic Ocean (see
    Petrels, Albatrosses and Storm-Petrels of North America by S. N. G. Howell, Princeton Univ. Press, 2012).  Citrine Wagtail and Eastern/Western Yellow Wagtails form another confusing complex (see
    Pipits and Wagtails by P. Alstrom and K. Mild, Princeton Univ. Press, 2003); mtDNA work had suggested that the two clades of Citrine Wagtail were each more closely related to different Yellow Wagtail clades than to each other, but nuclear DNA work appears
    to confirm the distinctness, and monophyly, of Citrine Wagtail.   Another potential state first, a Hawfinch ( Coccothraustes coccothraustes ) aboard a ship offshore of San Luis Obispo and Santa Barbara Counties, 17 May 2016 (2016-150),
    was not accepted due to questionable natural occurrence.   The addition of the storm-petrel and wagtail brings the California state list to 671 species. Thanks to Joe Morlan, the CBRC web site has already been updated with this
    information:   https://www.californiabirds.org/   Kimball L. Garrett [CBRC Spokesperson] Natural History Museum of Los Angeles County 900 Exposition Blvd. Los Angeles, CA 90007 USA kgarrett@...  
  4. -back to top-
  5. RE: [CALBIRDS] News from the California Bird Records Committee LINK
    DATE: Jan 24, 2018 @ 2:56pm, 5 month(s) ago
    Tom,
    
    Thanks. I am interested in this question. One thing to consider is the interplay between age and the white on the central rectrices. I posted a bunch of photos on the Facebook Advanced ID site some time ago about this. But in some **juvenile** Nazca Boobies in the Galapagos, the white is showing in the central tail feathers before fledging. I am not sure if you need to be a member to see this:
    
    https://www.facebook.com/photo.phpfbid=10155071688133520 < https://www.facebook.com/photo.phpfbid=10155071688133520&set=pcb.1417872404975626&type=3&theater&ifg=1 > &set=pcb.1417872404975626&type=3&theater&ifg=1
    
    regards,
    
    Alvaro
    
    Alvaro Jaramillo
    
    alvaro@...
    
    www.alvarosadventures.com
    
    From: CALBIRDS@yahoogroups.com [mailto: CALBIRDS@yahoogroups.com ] On Behalf Of Tom Benson Thomasabenson@... [CALBIRDS]
    
    Sent: Wednesday, January 24, 2018 2:49 PM
    
    To: CALBIRDS@yahoogroups.com
    
    Subject: Re: [CALBIRDS] News from the California Bird Records Committee
    
    Alvaro,
    
    The committee reviewed a number of photos of Masked Boobies, a couple of which showed extensive white on the tail. I do not recall where those photos were from, but perhaps other committee members can chime in with the source of those photos.
    
    Tom
    
    Tom Benson
    
    Secretary, CBRC
    
    
  6. -back to top-
  7. RE: [CALBIRDS] News from the California Bird Records Committee LINK
    DATE: Jan 24, 2018 @ 2:15pm, 5 month(s) ago
    Kimball,
    
    Are there well documented (photos/specimens) Masked Boobies with
    
    extensive white on the tail
    
    Thanks,
    
    Alvaro
    
    Alvaro Jaramillo
    
    alvaro@...
    
    www.alvarosadventures.com
    
    From: CALBIRDS@yahoogroups.com [mailto: CALBIRDS@yahoogroups.com ] On Behalf
    
    Of Kimball Garrett kgarrett@... [CALBIRDS]
    
    Sent: Wednesday, January 24, 2018 12:03 PM
    
    To: CALBIRDS@yahoogroups.com
    
    Subject: [CALBIRDS] News from the California Bird Records Committee
    
    Birders,
    
    The California Bird Records Committee held its annual meeting in Los Gatos
    
    19-20 January. Steve Rottenborn, CBRC Chair, has provided the following
    
    highlights of that meeting along with some recent CBRC decisions.
    
    COMMITTEE MEMBERSHIP
    
    Dan Singer, Peter Pyle, and Jim Pike were elected as voting members. Steve
    
    Rottenborn, Dan Singer, and Tom Benson were elected as Chair, Vice Chair,
    
    and Secretary, respectively. The terms of Lauren Harter, Kristie Nelson, and
    
    Scott Terrill expired.
    
    STATE LIST
    
    Recently accepted additions to the California list are all from offshore
    
    islands - Jouanin's Petrel (1 Jun 2016, Santa Barbara Island, SBA), Kermadec
    
    Petrel (8 Sep 2017, Southeast Farallon Island, SF), and Eurasian Wryneck (25
    
    Sep 2017, San Clemente Island, LA). With these additions, the state list
    
    stands at 668 species. Other potential first state records awaiting CBRC
    
    review include Band-rumped Storm Petrel (10-11 Nov 2017, Southeast Farallon
    
    Island, SF), Citrine Wagtail (15-16 Dec 2017, Yolo Bypass Wildlife Area,
    
    YOL), and Tropical Parula (5 Jan 2018-present, Huntington Beach, ORA).
    
    REVIEW LIST
    
    Dusky-capped Flycatcher was removed from the Review List on the basis of the
    
    number of accepted records (110 at the time of the meeting, with an average
    
    of 4.3/year over the last 10 years) and relatively high acceptance rate
    
    (89%). All five current wintering Dusky-capped Flycatchers that were first
    
    recorded in 2017 will still be reviewed; please send your documentation for
    
    these individuals, or any other review species, to the CBRC secretary at
    
    secretary@... or by
    
    using the online form at
    
    http://www.californiabirds.org/report_sighting.html.
    
    OTHER DISCUSSIONS/DECISIONS
    
    Identification of adult Masked and Nazca boobies is straightforward given
    
    adequate views, but identification of subadults is more challenging. Along
    
    with the recent increase in numbers of adult Masked and, especially, Nazca
    
    boobies in California, the Committee has wrestled with the identity of a
    
    number of subadult birds. To supplement information in the identification
    
    literature, the CBRC reached out to experts Robert Pitman and Mike Force for
    
    information on how quickly subadults start to acquire the "adult" bill
    
    color, how reliable the presence/extent of white on the central rectrices is
    
    for identification, and how frequently hybridization between the two species
    
    occurs. More information on all these issues is needed, but it appears that
    
    some immatures begin to acquire the greenish (Masked) or pinkish (Nazca)
    
    bill color after about a year, and the presence of those colors is the most
    
    reliable field character. Until those colors are apparent in the bill,
    
    reliable identification may not be possible. Presence of extensive white in
    
    the central rectrices is suggestive of Nazca, but some Nazcas lack extensive
    
    white, and a small percentage of Masked Boobies can show extensive white.
    
    Hybridization between the two species does occur, but hybrids are apparently
    
    infrequent enough that the probability of encountering one is very low.
    
    Using these ID criteria, the CBRC is accepting a number of records to
    
    species, but juveniles, as well as subadults that are not well seen or that
    
    lack expression of some "adult" bill color, may be accepted only as
    
    "Masked/Nazca Booby".
    
    The Committee discussed photos of a California Blue-headed/Cassin's Vireo
    
    that looked quite good for Blue-headed in lower-light exposures (with
    
    apparently sharp demarcation between dark auriculars and white throat) and
    
    much better for Cassin's in more strongly lit or better exposed images,
    
    which blurred the demarcation between the auriculars and throat. The images
    
    of this individual emphasized the importance of obtaining as much
    
    documentation of putative Blue-headed Vireo records as possible (in this
    
    case, recordings of the song matched Cassin's well) while reiterating how
    
    difficult the identification of some Blue-headed/Cassin's Vireos can be.
    
    The Committee decided to re-evaluate the 4 Dec 1986-3 Apr 1987 record of
    
    Oriental Greenfinch from Arcata, HUM. This record was previously not
    
    accepted by the CBRC on the grounds of questionable natural occurrence, as
    
    there were no North American records away from the western Aleutians at the
    
    time and the Committee was concerned about the potential for the bird to
    
    have escaped (or been released) from captivity. The species was then placed
    
    on the CBRC's Supplemental List. With more recent records from the
    
    Pribilofs and British Columbia suggesting a pattern of occurrence, the CBRC
    
    will re-evaluate the record.
    
    The Introduced Birds Subcommittee (IBSC), headed up by Kimball Garrett, will
    
    continue to monitor whether any introduced species warrant addition to the
    
    State List. Research into distribution, habitat associations, breeding
    
    biology, and trends in abundance of introduced species is needed before the
    
    CBRC is likely to add any new introduced species to the state list.
    
    Please feel free to visit the CBRC's webpage at
    
    http://www.californiabirds.org/ for updates and additional information. If
    
    you have any questions about the CBRC, please contact Steve Rottenborn
    
    ( chair@... ) or Tom
    
    Benson ( secretary@...
    
    ).
    
    Finally, I (KLG) will continue to serve as the occasional CBRC
    
    "spokesperson" on Calbirds for the coming year.
    
    Kimball L. Garrett
    
    Ornithology Collections Manager
    
    Natural History Museum of Los Angeles County
    
    900 Exposition Blvd.
    
    Los Angeles, CA 90007 USA
    
    kgarrett@...
    
    
  8. -back to top-
  9. News from the California Bird Records Committee LINK
    DATE: Jan 24, 2018 @ 12:02pm, 5 month(s) ago
    Birders,
    
    The California Bird Records Committee held its annual meeting in Los Gatos 19-20 January. Steve Rottenborn, CBRC Chair, has provided the following highlights of that meeting along with some recent CBRC decisions.
    
    COMMITTEE MEMBERSHIP Dan Singer, Peter Pyle, and Jim Pike were elected as voting members. Steve Rottenborn, Dan Singer, and Tom Benson were elected as Chair, Vice Chair, and Secretary, respectively. The terms of Lauren Harter, Kristie Nelson, and Scott Terrill
    expired.
    
    STATE LIST Recently accepted additions to the California list are all from offshore islands - Jouanin's Petrel (1 Jun 2016, Santa Barbara Island, SBA), Kermadec Petrel (8 Sep 2017, Southeast Farallon Island, SF), and Eurasian Wryneck (25 Sep 2017,
    San Clemente Island, LA). With these additions, the state list stands at 668 species. Other potential first state records awaiting CBRC review include Band-rumped Storm Petrel (10-11 Nov 2017, Southeast Farallon Island, SF), Citrine Wagtail (15-16 Dec 2017,
    Yolo Bypass Wildlife Area, YOL), and Tropical Parula (5 Jan 2018-present, Huntington Beach, ORA).
    
    REVIEW LIST Dusky-capped Flycatcher was removed from the Review List on the basis of the number of accepted records (110 at the time of the meeting, with an average of 4.3/year over the last 10 years) and relatively high acceptance rate (89%). All
    five current wintering Dusky-capped Flycatchers that were first recorded in 2017 will still be reviewed; please send your documentation for these individuals, or any other review species, to the CBRC secretary at
    secretary@... or by using the online form at
    http://www.californiabirds.org/report_sighting.html .
    
    OTHER DISCUSSIONS/DECISIONS Identification of adult Masked and Nazca boobies is straightforward given adequate views, but identification of subadults is more challenging. Along with the recent increase in numbers of adult Masked and, especially, Nazca boobies
    in California, the Committee has wrestled with the identity of a number of subadult birds. To supplement information in the identification literature, the CBRC reached out to experts Robert Pitman and Mike Force for information on how quickly subadults start
    to acquire the "adult" bill color, how reliable the presence/extent of white on the central rectrices is for identification, and how frequently hybridization between the two species occurs. More information on all these issues is needed, but it appears that
    some immatures begin to acquire the greenish (Masked) or pinkish (Nazca) bill color after about a year, and the presence of those colors is the most reliable field character. Until those colors are apparent in the bill, reliable identification may not be
    possible. Presence of extensive white in the central rectrices is suggestive of Nazca, but some Nazcas lack extensive white, and a small percentage of Masked Boobies can show extensive white. Hybridization between the two species does occur, but hybrids
    are apparently infrequent enough that the probability of encountering one is very low. Using these ID criteria, the CBRC is accepting a number of records to species, but juveniles, as well as subadults that are not well seen or that lack expression of some
    "adult" bill color, may be accepted only as "Masked/Nazca Booby".
    
    The Committee discussed photos of a California Blue-headed/Cassin's Vireo that looked quite good for Blue-headed in lower-light exposures (with apparently sharp demarcation between dark auriculars and white throat) and much better for
    Cassin's in more strongly lit or better exposed images, which blurred the demarcation between the auriculars and throat. The images of this individual emphasized the importance of obtaining as much documentation of putative Blue-headed Vireo records as possible
    (in this case, recordings of the song matched Cassin's well) while reiterating how difficult the identification of some Blue-headed/Cassin's Vireos can be.
    
    The Committee decided to re-evaluate the 4 Dec 1986-3 Apr 1987 record of Oriental Greenfinch from Arcata, HUM. This record was previously not accepted by the CBRC on the grounds of questionable natural occurrence, as there were no North
    American records away from the western Aleutians at the time and the Committee was concerned about the potential for the bird to have escaped (or been released) from captivity. The species was then placed on the CBRC's Supplemental List. With more recent
    records from the Pribilofs and British Columbia suggesting a pattern of occurrence, the CBRC will re-evaluate the record.
    
    The Introduced Birds Subcommittee (IBSC), headed up by Kimball Garrett, will continue to monitor whether any introduced species warrant addition to the State List. Research into distribution, habitat associations, breeding biology,
    and trends in abundance of introduced species is needed before the CBRC is likely to add any new introduced species to the state list.
    
    Please feel free to visit the CBRC's webpage at
    http://www.californiabirds.org/ for updates and additional information. If you have any questions about the CBRC, please contact Steve Rottenborn ( chair@... ) or Tom Benson ( secretary@... ).
    
    Finally, I (KLG) will continue to serve as the occasional CBRC "spokesperson" on Calbirds for the coming year.
    
    Kimball L. Garrett Ornithology Collections Manager Natural History Museum of Los Angeles County 900 Exposition Blvd. Los Angeles, CA 90007 USA kgarrett@...
  10. -back to top-
  11. Citrine wagtail in yolo county. LINK
    DATE: Dec 17, 2017 @ 4:46pm, 6 month(s) ago
    Just gave it another try this evening. No luck.
    
    Sent from my iPhone
    
    John Sterling
    
    530 908-3836
    
    26 Palm Ave
    
    Woodland, CA 95695
  12. -back to top-
  13. Citrine Wagtail parking LINK
    DATE: Dec 16, 2017 @ 7:51pm, 6 month(s) ago
    All, 
    
    I saw a report that wildlife area staff have asked the birders to use the parking lots and not the roadside for parking. Tomorrow is a hunt day (not in the wagtail area) so there will be some traffic.  
    
    Best to park in Lot B and walk east about 200 yards to the wagtail area. 
    
    Tomorrow is also the Sac CBC in this area, so CBC bonus points apply!  
    
    --
    Steve Hampton
    
    Davis, CA
  14. -back to top-
  15. Citrine Wagtail update Sat morning LINK
    DATE: Dec 16, 2017 @ 11:25am, 6 month(s) ago
    This morning around 8:30am at Yolo Bypass Wildlife Area (YBWA), Mark Sawyer and I, approaching from opposite sides of a pond, re-found the CITRINE WAGTAIL nearly simultaneously.  Shout out to Eric Haddix, who knows YBWA so well that he assured us this pond was the only area on the tour loop that matched the freshly tilled, wet dirt clods, shallow water, and green cattails from yesterday's photos.  
    
    I managed a few photos and have posted a map at:   http://ebird.org/ebird/view/checklist/S41127176
    
    My lat-long this morning was 38.5521, -121.6237
    
    Exact location at YBWA is the eastern third of the amoeba-shaped pond that is north and east of Lot B.  Best viewing is probably from the trail only the SE of the pond, which runs from Lot B to the auto-tour loop further NE.  As you enter YBWA from the levee near I-80 (between Davis and Sacramento), you proceed south thru Lot A. At the "Y", you can go straight (angle left) to Lot B, or you can turn hard left and go due east and park about 1/3 mile down near the end of the pond on your right, which is where the bird was first photographed yesterday. See map at eBird checklist. 
    
    Conditions now are incredibly windy-- car-door-slamming, shout-to-be-heard, lean-into-it wind. Supposed to be lighter tomorrow. 
    
    Previous North American records of Citrine Wagtail:
    
    1) January 31 - February 1, 1992 at the Starkville Sewage
    Ponds in Oktibbeha County, Mississippi 
    
    2) Nov 15, 2012 - March 25, 2013 near  Courtenay River Estuary, Comox, Vancouver Island, British Columbia (see  http://ibis.geog.ubc.ca/biodiversity/efauna/documents/CitrineWagtail-RT-l.pdf ) 
    
    There is a Swamp Sparrow 50-100 yards west of the Y. 
    
    good birding, 
    
    --
    Steve Hampton
    
    Davis, CA
  16. -back to top-
  17. Citrine wagtail LINK
    DATE: Dec 16, 2017 @ 11:08am, 6 month(s) ago
    The Wagtail at the yolo basin wildlife area off hwy 80 in yolo county has not been seen since it was refound this mornings out 2.5 hours ago. . Very strong winds through today. Forecast for no wind tomorrow. An army of birders here now for past three hours.
    
    Sent from my iPhone
    
    John Sterling
    
    530 908-3836
    
    26 Palm Ave
    
    Woodland, CA 95695
  18. -back to top-
  19. Re: CITRINE WAGTAIL at Yolo Bypass; photos but no location LINK
    DATE: Dec 16, 2017 @ 9:36am, 6 month(s) ago
     Re-located in very heavy winds about 200 yards east northeast of Lot B 
    
    On Sat, Dec 16, 2017 at 7:35 AM Steve Hampton < stevechampton@... > wrote:
    
    reported on eBird; seen yesterday morning; news just out now; photographs
    
    http://ebird.org/ebird/view/checklist/S41115171
    
    NO DETAILS on location of 6.4km route. 
    
    We are searching now, despite 45 mph winds today.
    
    --
    Steve Hampton
    
    Davis, CA
    
    --
    
    Steve Hampton
    
    Davis, CA
  20. -back to top-
  21. CITRINE WAGTAIL at Yolo Bypass; photos but no location LINK
    DATE: Dec 16, 2017 @ 7:35am, 6 month(s) ago
    reported on eBird; seen yesterday morning; news just out now; photographs
    
    http://ebird.org/ebird/view/checklist/S41115171
    
    NO DETAILS on location of 6.4km route. 
    
    We are searching now, despite 45 mph winds today.
    
    --
    Steve Hampton
    
    Davis, CA
  22. -back to top-


-revision history-
v1.30 - 01/05/16 - Revamped cloud logic, optimized database queries, linked to eBird rarities.
v1.23 - 12/08/11 - Added direct link to CBRC records.
v1.22 - 12/03/11 - Corrected GMT offsets on dates. Added last 5 posts at top.
v1.21 - 11/24/11 - Added direct link to range map for NA birds.
v1.2  - 11/23/11 - Greatly improved graphing technology - separates month vs. year by posts. Added species auto-complete functionality.
v1.14 - 11/22/11 - Added cloud bubble for common thread topics.
v1.13 - 11/22/11 - Added integrated photos where available.
v1.12 - 11/22/11 - Added multiple input boxes for additional refinement, negative search criteria (eg. -keyword).
v1.11 - 11/22/11 - Added banding code, species look-up. Also direct link to recent eBird observations.
 v1.1 - 11/22/11 - Added 'date' functionality. Shows top 'month/year' combinations for a query. Restrict results to that 'month/year'.
 v1.0 - 11/21/11 - Initial version coded. Currently archiving 'lacobirds' and 'calbirds'.