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The inside of a tree swallow nest A male gathering nesting material. The tree swallow has high rates of extra-pair paternity, 38% to 69% of nestlings being a product of extra-pair paternity, and 50% to 87% of broods containing at least one nestling that was the result of an extra-pair copulation. [14]
Violet-green swallow with a beak full of insects A female violet-green swallow feeding her chick from outside their tree hole nest. Similar to other swallows, violet-green swallows are specialized aerial insectivores, catching and eating their prey while in flight. However, they have been known to feed higher in the sky than most other swallows.
A tree swallow attending its nest in a tree cavity. Swallows are excellent flyers and use these skills to feed and attract mates. Some species, such as the mangrove swallow, are territorial, whereas others are not and simply defend their nesting sites. In general, the male selects a nest site, and then attracts a female using song and flight ...
The forest swallow (Atronanus fuliginosus) is a little-known species of swallow in the family Hirundinidae, found in Cameroon, Republic of the Congo, Equatorial Guinea, Gabon, and Nigeria. The species was previously placed in the genus Petrochelidon , within the ‘mud-nester’ clade of swallows, yet its plumage, morphology, and nesting ...
Cliff swallows are not common birds and to have them nesting on our vinyl-sided house is very unusual as they traditionally prefer nesting under bridges or eaves of old barns.
Begging rate and intensity varied in response to recordings of (1) a tree swallow adult landing on a nestbox and calling and (2) a common grackle (Quiscalis quiscala), a nest predator, landing on a nestbox. Nestlings increased the rate and intensity of their begging responses to both swallow and grackle stimulus sounds as time without food ...
Tree swallow: north-central Alaska and up to the tree line in Canada and as far south as Tennessee in the eastern part of its range, California and New Mexico in the west, and Kansas in the centre Tachycineta cyaneoviridis: Bahama swallow: northern Bahamas: Andros, Grand Bahama, Abaco, and New Providence Tachycineta thalassina: Violet-green swallow
Chicks in the nest. The barn swallow is similar in its habits to other aerial insectivores, including other swallow species and the unrelated swifts. It is not a particularly fast flier, with a speed estimated at 11 m/s (40 km/h), up to 20 m/s (72 km/h) and a wing beat rate of approximately 5, up to 7–9 times each second. [47] [48]