
Last week I was able to get a couple of decent photos of a Merlin. These birds tend to be wary and speedy!
While superficially the size and shape of an American Kestrel, in flight the Merlin is a race car to the Kestrel's moped. The Merlin never hovers!
Merlins tend to favor open country where they often hunt from low perches. Even migration is low and direct--hugging the terrain, just over the shrub-tops. When they see their prey (usually other small birds or dragonflies) they pursue in quick, direct flight. They then may take their prey to a perch (top of a telephone pole or fence post in open country) to pluck and eat.

This particular bird is the subspecies suckleyi, formerly called the Black Pigeon Hawk. It is very dark--and heavily streaked below. This race breeds in British Columbia and winters along the coast to southern California.
I have noted this species chasing shorebirds in coastal estuaries and Pine Siskins over coastal sitka spruce forests. Once I noted a flock of Bushtits flying (crawling through the air) over the beach at the south jetty of the Columbia River. Silly birds. A Merlin flew leisurely (for a Merlin) and snatched a Bushtit out of the air without breaking stride.
Other races of Merlins are found September through April in the Pacific Northwest. The Prairie race (richardsonii) is very pale blue-gray, females pale tannish-gray. The northern taiga form (columbarius) is intermediate (see The Sibley Guide to Birds