Orange-crowned Warbler: Dr J. Murray Speirs

In Ontario this is usually a rare warbler, breeding only in the far north.

Orange-crowned Warbler

It tends to be a rather late fall migrant, after most other warblers have gone.

Orange-crowned Warbler

It winters from Central America north to southern United States.

Orange-crowned Warbler

This is “the warbler with no field marks”: no bright colours, no wingbars, no eye ring; only a very indistinct line over the eye, faint greenish stripes on the yellowish breast and yellow undertail coverts.

Orange-crowned Warbler

The orange crown is seldom visible.

Orange-crowned Warbler

The fall immature Blackpoll Warbler is somewhat similar but does have wing bars and white, not yellow, undertail coverts.

Blackpoll Warbler (National Audubon Society)

This is a common songster on Vancouver Island, where I learned to recognize its trill, something like a Chipping Sparrow’s trill, but descending in pitch and fading out at the end.

Orange-crowned Warbler

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