T he tree swallow is typically a straightforward enough bird to identify, even for newer birders. With shiny, almost iridescent teal upperparts and white below, they cut a striking figure as they ...

There are eight species of swallows in North America with seven species in Montana. The cave swallow is mostly found in Texas and Mexico. Tree, violet-green, northern rough-winged, bank, barn, ...

It’s Feb. 20 and the first spring migrant is flying low over the waters of a mountain lake in Transylvania County. The first tree swallow has arrived, but winter has not yet retreated and it’s a ...

Dunn's genetic analysis of offspring reveals the male tree swallow on the nest may not be the father. Typically, only 1 of 5 babies in a nest belongs to the male parenting them, according to Dunn.

Wind, rain play key role in breeding patterns of migratory tree swallows Date: April 26, 2017 Source: University of Colorado at Boulder Summary: Wind and precipitation play a crucial role in ...

Tree swallow nesting boxes line the shore of a ditch on the Duluth air base, home of the 148th Fighter Wing. The base is a known hotspot for PFAS contamination in soil, ...

Last week I wrote about the tree swallow spectacle on Plum Island. Their numbers continue to build, and one has to be careful when proceeding down the island, driving slowly to avoid collisions ...