What functions do mix of feathers have in a tree swallow bird nest? Pa. researchers look for answers. Published: ; Aug. 26, 2021, 5:00 a.m.

For tree swallows, feathering one's nest is more than a phrase. ... Biologists say that feathers in tree swallow nests provide survival insurance — insulation and protection from parasites.

For Wildlife Recovery Association's Barb Rogers, tree swallows are swift, smart and stunningly beautiful. However, there is a lot more to them. Their irridescent colors of blue and green flash in ...

Tree swallows fill the sky over the Connecticut River near Haddam, ... No one really understands why these dynamic little birds, with their metallic blue-green feathers and white bellies, ...

A couple other interesting tidbits, according to the Cornell lab, are that tree swallows: — Bathe by flying low over the water and skimming their bodies against the surface, then rising quickly while ...

His research team captured male tree swallows and randomly colored the iridescent blue-green feathers of some with non-toxic black ink markers early in the breeding season, before most mating, to ...

The boys of summer catch flies.The birds of summer catch flies.Baseball and birdwatching may be a strange mix, but the last time I visited Veteran’s Stadium to watch a Phillies game, I was ...

Where tree swallows have a rather grumpy-looking face, with a metallic blue helmet quashed over their eyes, the whiter-faced plumage of this bird gives them what big-time birder Pete Dunne ...

Learn how to identify a male and female tree swallow. Find out about their ... Females, too, will have that blue-green, but it’ll be a bit more dull. Like other ... needles and feathers, ...

When tree swallow migration peaks around the third week in March, you might see flocks with as many as 300 birds flying over area lakes. Purple martins, bluebirds and tree swallows are all cavity ...

Tree swallows are known for collecting feathers to provide their nests with a soft baby blanket. Though tree swallows naturally nest in tree holes, thus their name, a bird box will do.