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Page:Ornithological biography, or an account of the habits of the birds of the United States of America, volume 1.djvu/265

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TRAILL'S FLY-CATCHER.

Muscicapa Traillii.


Plate XLV. Adult Male.

Bill of ordinary length, depressed, tapering to a point, the lateral outlines a little convex, very broad at the base; the gap reaching to nearly under the eye; upper mandible with the edges acute, slightly notched close upon the tip, which is a little deflected and acute; lower mandible straight, acute. Nostrils basal, lateral, elliptical. Head and neck of moderate size. Body rather slender. Feet of moderate length, slender; tarsus compressed, covered anteriorly with short scutella, and longer than the middle toe; toes free, scutellate above; claws compressed, arched, acute.

Plumage soft and tufty; feathers of the head narrow and erectile. Wings of moderate length, third quill longest. Tail longish, slightly forked when closed, of twelve rather narrow, obtuse feathers.

Bill dark brown above, yellow beneath. Iris hazel. Feet brownish-black. The general colour of the plumage above is dull brownish-olive, the two rows of larger wing-coverts tipped with dull white. Throat greyish-white, as is a very narrow space around the eye; sides of the head and neck, and fore part of the breast, coloured like the back, but lighter; the rest of the under parts dull yellowish-white.

Length 5¾ inches, extent of wings 8½; bill along the ridge ½, along gap ¾; tarsus 7/12.

As already mentioned, this species bears a very close resemblance to Muscicapa acadica, and M. virens, more especially the former.

Muscicapa virens has the tail deeply emarginate, whereas in the present species that part is nearly even. The colouring is nearly the same in both, but M. virens is considerably larger.

Muscicapa acadica is also similarly coloured, but in it the whitish space about the eye is larger, the throat darker, the breast and abdomen lighter. The tail also is quite even. A decided difference exists in the bill, which, in place of being convex in its lateral outlines, is a little concave.