Eight hundred sixty-five birds were banded from 45 species. blackish greater coverts and distinctly brown secondaries (and the same contrast
While most of its relatives migrate to the tropics in fall, the Yellow-rump, able to live on berries, commonly remains as far north as New England and Seattle; it is the main winter warbler in North America. McGill Bird Observatory (QC), May 2007, A closer view, highlighting an example where all greater coverts appear to have been
Winter: San Diego County must be near the core of the Audubonâs Warblerâs winter range.
The spe-cies is common to abundant Photo by Anthony Mercieca Wood Warblers â Family Parulidae 477. from the coast up to about 2500 feet elevation. Note
Myrtle Warblers in Autumn October 17, 2016 by Corey 2 Comments Before it was lumped with the western subspecies, the eastern version of the Yellow-rumped Warbler was (and may someday again be) called the Myrtle Warbler . McGill Bird Observatory (QC), October 2010, RETURN TO AGE/SEX
with silvery edging.
Audubon protects birds and the places they need, today and tomorrow. Photo by Marcel Gahbauer,
Photo by Marcel Gahbauer,
Photo by Marcel Gahbauer,
In winter, flocks may wander in search of food sources.
Delta Marsh Bird Observatory (MB), May 2009, An ASY male Audubon's Warbler, similar to the Myrtle Warbler examples above, but
In most cases this provides the best way to separate SY and ASY females, but in cases where all greater coverts have been replaced during the prealternate molt, the appearance of the SY wing may look more similar to the ASY pattern, and extra caution is required. extensive white
this is a result of the prealternate molt and provides no clues about age. McGill Bird Observatory (QC), October 2010, JUL - DEC: after-hatch-year
Flashing its trademark yellow rump patch as it flies away, calling check for confirmation, this is one of our best-known warblers. The uppertail coverts of ASY females have moderately to very wide black centres with largely blue-gray edging, but usually also some brown. Photo by Manon Dub�,
McGill Bird Observatory (QC), September 2005, Another HY female Myrtle Warbler, this one with a hint of yellow on the breast. coverts that are almost entirely black, with a bit of gray-blue edging.
ASY males have largely black uppertail coverts, with gray-blue edging that may be largely worn off by spring, especially toward the tips. Photo by Marcel Gahbauer,
McGill Bird Observatory (QC), May 2006, Another ASY male Myrtle Warbler, with the edging of the primary coverts a bit less prominent. They may have as much yellow on the breast as some AHY males, though generally lack it on the crown. Note, however, that
Approximate combined distribution map of the Myrtle Warbler Audubonâs Warbler. Banff National Park (QC), May 2007. male. faded, contrasting with the uppertail coverts.
SY males are generally quite similar in overall appearance to ASY males, also featuring distinct yellow and black patches on the breast. This individual is a myrtle warbler, as shown by the white throat. In this account, Myrtle and Audubonâs Warblers will be treated separately. Choose a temperature scenario below to see which threats will affect this species as warming increases. Photo by Manon Dub�,
Status: Common regular spring and fall migrant statewide. There is usually a distinct contrast between the blackish inner greater coverts and brown, relatively worn tertials. Let us send you the latest in bird and conservation news.
coverts, and white patches on the three outermost rectrices. McGill Bird Observatory (QC), May 2008.
A typical ASY male Myrtle Warbler, with bold yellow and black on the breast, and a solid black mask. replaced during the prealternate molt, and there are therefore only two generations of
Head gray with yellow crown, white crescent under eyes, white supercilium, black lores and cheeks. the black facial mask to complement the blue-gray wings. Photo by Marcel Gahbauer,
birds, and mostly black uppertail coverts, with a hint of brown on the edge of some. Feeds on caterpillars, wasps, grasshoppers, gnats, aphids, beetles, and many other insects; also spiders. Details; EXIF; Description I love warblers , funny birds, active and colourful. AHY females have relatively broad and rounded rectrices, usually with white patches on the outermost three feathers (r4-r6), but sometimes restricted to just r5 and r6. Can winter farther north than most warblers because it can digest the wax in berry coatings. Photo by Marcel Gahbauer,
Photo by Marcel Gahbauer,
Patterns are similar on SY male Audubon's Warbler, though retained juvenile feathers tend to be a bit more grayish than on Myrtle Warblers, and the alternate greater coverts have broader white edging. feathers
Myrtle Warbler, prealternate molt, Yellow-rumped Warbler The Yellow-rumped Warbler (Dendroica cor-onata)1 is a common and often abundant spring and fall migrant through northwestern Oregon (Janes 2003) and Washington (Wahl and others 2005) and is also present in smaller numbers throughout the winter in most years. Inglewood Bird Sanctuary (AB), August 2010. The. edging, occasionally with a hint of brown at the tip. McGill Bird Observatory (QC), October 2010, A somewhat paler AHY male, with no black on the face, and only faint yellow on the side
(Old-time birders refer to this bird as the myrtle warbler.)
AHY males have the darkest wings of all age/sex classes. Photo by Marie-Anne Hudson,
A typical AHY female wing, showing a contrast between the greater and primary coverts,
Such a wing can be more
The primary coverts have minimal edging, which if present is more brownish than silvery-gray. However, some individuals with les brown in these areas may superficially look more like ASY females, requiring closer review of the wing and tail to assess age.
Photo by Marcel Gahbauer,
greater coverts and the very pale and worn tertials, as well as the three generations of
Distinctions between SY and ASY females can be subtle, and usually a good look at the wing and tail is required to determine age. AHY - F
between the pale brown and very worn juvenile flight feathers with the fresher gray
females are distinctly paler than males, with the yellow and black markings on the breast much more limited. � 2002- The
SY female Yellow-rumped Warblers have a wing pattern similar to that of SY males, but a bit browner. The amount of yellow on the breast and crown is also on average greatest on AHY males, but this sufficiently variable that it is of limited use. Yellow-rumped Warblers are vivid and conspicuous birds that search for food both high and low in Douglas firs or pines. Photo by Marie-Anne Hudson,
An AHY male Myrtle Warbler with a particularly extensive amount of white on the tail.
Note again the brownish tone of the primaries and secondaries,
The first spring transients, mostly brilliant colored males, were generally seen between April 12 and 20. A typical ASY female wing, with a subtle contrast between the greater and primary coverts,
Brownish and streaked, with relatively dull and uniform wings. amount of white on r5 and r6, and a bit extending to r4; the uppertail coverts are mostly
Incubated usually by female, 12-13 days. outermost greater covert being a retained juvenile feather, contrasting with both the
somewhat intermediate between what is typical of HY and AHY individuals. replaced during the prealternate molt. McGill Bird Observatory (QC), October 2010, A more typical AHY female tail, with an intermediate amount of black on the uppertail
McGill Bird Observatory (QC), October 2010, An AHY female during the final stages of a late prebasic molt.
Included in this species are two different-looking forms, the eastern â¦ Photo by Peter Pyle, San Francisco Bay Bird Observatory (CA), April 2006, The colours in this photo are a bit skewed by the direct sunlight, but again it is readily
Are the Trump Administration's Environmental Rollbacks Built to Last? female. female. McGill Bird Observatory (QC), October 2010, A closer view, highlighting the shape and edging of the primary coverts. McGill Bird Observatory (QC), October 2010, A somewhat more pointed tail, with narrower black centres to the uppertail coverts.
Visit your local Audubon center, join a chapter, or help save birds with your state program. McGill Bird Observatory (QC), May 2005, JUL - DEC: after-hatch-year
The area between the uppertail coverts and the back of the bird. In winter, usually forages in flocks. Photo by James Junda,
birds, Myrtle Warbler for the white-throated eastern ones. McGill Bird Observatory (QC), October 2010, Another AHY male Myrtle Warbler, this one with a bit more black on the face, but somewhat
RETURN TO AGE/SEX
males with a similar colour pattern based on shape. Photo by Manon Dub�,
McGill Bird Observatory (QC), May 2006, An ASY male Audubon's Warbler; note that it has more white on the tail than Myrtle Warblers,
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