Stocky, sluggish warbler
White crescent above and below eye
Full gray hood, covering head, nape and throat
Dark, charcoal gray hood
Black area in front of eyes
Paler gray hood
Whitish-gray chin and throat
Listen to its call.
I haven't read anywhere that MacGillivray's Warblers have particularly short tails but this little one sure did. In fact, it was almost non-existent as can be seen in the picture below. Anyone have any insight on this?
UPDATE: Since my original post, I have discovered that this hatch year bird was probably going through its preformative molt. Typically during this molt, not all of the feathers are replaced. However, I read that juveniles sometimes lose their entire tail prematurely and when it regrows it features adult rectrices.
Learn more about the MacGillivray's Warbler.