Wednesday, July 29, 2015

Cliff Swallow

Cliff Swallow
Cliff swallows are native to most of North America, although they are more common in the western part of the continent. During the winter they migrate to South America. As their name would suggest they are often found nesting on cliffs. In the past this limited their range. However cliff swallows have adapted to human civilization and now nest on many man made structure, such as bridges and building overhangs. This has helped them to expand their range and they can now be found in a variety of habitats.
Cliff Swallow
 Cliff swallows eat primarily flying insects which they catch in flight. They usually feed in groups. These groups can consist of a couple of birds or a flock of 100's of birds. Often swallows will follow another bird who has found a good area to hunt.
Cliff Swallow
Cliff swallows usually nest in colonies. Colonies in western North America tend to be larger than their counterparts in eastern North America. Both male and female build the nest which is made from mud. They will typically have 1 to 2 broods of chicks per year depending on where in the range their nest is located. Some swallows will lay eggs in other nests in the colony. 

Tuesday, July 21, 2015

Brown-crested Flycatcher

Brown-crested Flycatcher
 The brown-crested flycatcher is found from Arizona and southern Texas down through Mexico, Central and South America. They are year round residents in most of their territory, however birds that nest in the United Sates often migrate to Mexico for the winter. They are often found in riparian forests, open woodlands, and desert scrub habitats, where they hunt insects on the wing in the under brush. They will also sometimes eat lizards or fruit depending on what is available. They look very similar to the ash-throated flycatcher but usually have a broader beak and depper yellow belly. This photo was taken at The Santa Ana NWR in south Texas.

Thursday, July 16, 2015

American Dipper

American Dipper
 The American dipper is not your typical songbird. They are not cute and colorful and popular on blog posts. However they are very fascinating as the are the only aquatic songbird in North America. The American dipper preys on aquatic insects and small fish which it often catches under the water. They find their prey by constantly dipping their head under the water, which is how they got their name.
American Dipper
 The American dipper is found along streams and rivers in the western half of North and Central America, from Alaska to Panama. They are not migratory and stay on territory year round. An abundance of feathers and a slow metabolic rate allow them to survive the freezing river temperatures even during the winter. The white spot in the photo above is the eye lid. These photos were taken on the Yellowstone River.

Saturday, July 4, 2015

Happy Independence Day

Othello
Happy Independence Day to all of my friends in the US. This handsome fellow is Othello. He is one of our education eagles at The Raptor Center.