Restart Bird Identification Expert

What was the SIZE of the Sheen or Iridescence Swallow-like bird you saw in Arizona?



Black Swift: Large, bulky swift, black overall. Wrist (wing angle) is very close to body. Long, slightly forked tail, often fanned out. It is the largest North American swift. Spends most of its time thousands of feet in the air. It flies on stiff, shallow wingbeats. Soars on thermals and updrafts.
Chimney Swift: Medium-sized swift, uniformly dark brown with slightly paler throat and upper breast. Inconspicuous spines extend past web at tips of tail feathers. Bill, legs and feet are black. Flight is rapid and batlike on swept-back wings, alternates with gliding. Soars on thermals and updrafts.
 
Restart Bird Identification Expert