Small streamlined songbird with a tiny bill, long, pointed wings and a short, squared or slightly notched tail. Adults are blue-green above and white below with blackish flight feathers.
Long-bodied songbird with a small head and bill. First year females may be brownish above with hints of blue-green; adult females can be nearly as blue-green as males.
Frequently nests in artificial nest boxes.
In flight, note streamlined body, squared or slightly notched tail and broad wings. Adults are blue-green above with a black mask around their eye and tiny white crescents on the sides of their rump.
Adult's metallic blue head contrasts with gleaming white underparts.
Immature female is mostly brown above, with just a trace of iridescent feathers.
The wings are broad and the tail is squared or slightly notched. Juveniles are brown above with a small white crescent on the sides of its rump.
Adults are iridescent blue-green with a thin black mask around the eye.
Juvenile is brown above and white below. Note the yellow gape typical of the juveniles of many species.
Juveniles are brown above and white below, but some juveniles and females can show a weak, blurry gray-brown breast band.
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Tree Swallows are streamlined small songbirds with long, pointed wings and a short, squared or slightly notched tail. Their bills are very short and flat.
Smaller than a Purple Martin; slightly larger than a Bank Swallow.
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