Hi Bill et al.:

The bird in question is undoubtedly an Orange-crowned Warbler, for the 
following reasons:

1) it has a dark eyeline behind the eye;

2) the eye ring is broken into eye arcs (the extensiveness of the eye arcs is 
probably due to photographic effect);

3) the flanks are gray with a suggestion of olive streaking;

4) the tail:underail covert ratio is too long for Nashville and just right for 
Orange-crowned (that is, Orange-crowned's tail is longer relative to its 
undertail coverts, producing an effect of more tail beyond the undertail 
coverts than shown by Nashville; check out Plate 32 in the Peterson Warblers 
guide and the appropriate illustrations in The Sibley Guide); and 

5) both of its parents were Orange-crowned Warblers; I know them personally.  
:-)

Tony Leukering
Villas, NJ






 Topic: Nashville or Orange crowned warbler? (pictures)
kickback <[email protected]> Oct 18 08:00PM -0700 ^

 
I posted a warbler picture on Saturday and have received a variety of
comments about whether it is an Orange crowned or Nashville warbler. I
saw it at Chico ranch on Saturday in the banding area. The various
responders have sent me these comments:
 
Reasons why it is an orange crowned warbler
 
1. The the eye ring is broken and there is no sharp demarcation
between hood and throat area , in fact the color of the hood is not
completely gray at all but mix of olive-yellow and gray
 
2. Eye-archs vs. complete eye-ring is better for Orange-crowned, as
are the overall colors. I'm not seeing much of a contrast between the
gray head and bright yellow throat.
 
 
Reasons why it is a Nashville warbler
 
1. The eye ring is just right for a Nashville Warbler and not an
Orange-crowned. I can't tell a lot about the rest of the head, which
should be grayish, and it should show a yellow throat as well.
 
2.The eye-ring does appear imperfect, however is too white and
contrasty;the fairly sharp demarcation between gray cheek/malar and
the very yellow throat is a feature I've never seen on even the most
gray-headed, yellow-bellied Orange-crowneds. In short, the face simply
doesn't have the look of an Orange-crowned. It also seems to be
lacking the diffuse streaking below that Orange-crowneds typically
have.
 
Complete set of pictures
 
http://avoapples.com/birds/IMG_3151_4x6.jpg
http://avoapples.com/birds/IMG_3152_4x6.jpg
http://avoapples.com/birds/IMG_3153_4x6.jpg
http://avoapples.com/birds/IMG_3156_4x6.jpg
http://avoapples.com/birds/IMG_3158_4x6.jpg
 
Thanks for any additional comments
 
Bill Kosar
[email protected]
Colorado Springs

 

 

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