How to Identify Violet-green Swallow Feathers

What Violet-green Swallow Feathers Look Like

Violet-green Swallow is a small, fast-flying western North American swallow whose iridescent back and unusual white facial extent make its feathers distinctive once compared side by side with other swallows.

• Back/crown feathers: glossy bronze-green, shimmering iridescent in good light.
• Rump/uppertail covert feathers: iridescent violet-purple, a color combination (green back, violet rump) unique among North American swallows.
• Face feathers: white extends unusually far, wrapping above and around the eye and onto the forehead — a key diagnostic trait not shared by Tree Swallow.
• Flank feathers: white extends high up the sides, nearly meeting over the base of the tail and creating paired white patches visible from above when the bird is in flight.
• Flight feathers: blackish, with a shallow tail fork (a slight notch, not deeply forked like a Barn Swallow).
• Size: small swallow feathers, roughly 12-13 cm body length, with body contours only 1-2 cm.

Step-by-Step: Is This Feather From a Violet-green Swallow?

1. Check the rump color. A violet-purple iridescent rump feather (rather than blue-green) is one of the clearest single indicators for this species.
2. Look at any face feathers. If white feathering extends above/around the eye rather than stopping below it, that favors Violet-green Swallow over Tree Swallow.
3. Examine flank feathers. White feathers that extend unusually high on the side, nearly wrapping toward the back, are consistent with this species' characteristic "saddle patch" look.
4. Compare back color. Bronze-green (not blue-green or steel-blue) upperparts feathers fit this species better than Tree Swallow's cooler blue-green tone.
5. Rule out deeply forked tail feathers, which would point to Barn Swallow rather than this shallow-forked species.

Similar Species & How to Tell Them Apart

• Tree Swallow: white face feathering stops below the eye rather than wrapping above it, the rump is blue-green (matching the back) rather than violet, and it lacks the white flank patches.
• Barn Swallow: has a deeply forked tail with long streamers and rufous-buff underparts, quite different from Violet-green's white belly and shallow tail notch.
• Northern Rough-winged Swallow: overall plain brown above with no iridescence at all, and dingy buff-brown (not white) underparts.
• Cliff Swallow: shows a pale buffy rump and a square tail, lacking any violet iridescence or the extended white face pattern.

Where & When You'll Find Them

Violet-green Swallows breed across western North American mountains, forests, and cliffs, from Alaska south into Mexico, nesting in cavities, crevices, and nest boxes, often near water or open forest edges. They are long-distance migrants, wintering from Mexico to Central America, so feathers in northern breeding areas are most likely from late spring through summer, with a fresh batch of molted body feathers appearing again after breeding before birds head south in fall.