- 9.4–11.8 in
- 20.9–26.8 in
- 5.6–8.5 oz
- Pigeon Hawk
- Faucon émerillon (French)
- Esmerejón (Spanish)
- The Merlin does not build a nest, but instead takes over old nests of other raptors or crows. It sometimes nests on top of domed magpie nests rather than in the nest cavity.
Breeds in open country from open coniferous woodland to prairie, occasionally in adjacent suburbs. Winters in open woodland, grasslands, open cultivated fields, marshes, estuaries, and seacoasts.
- Clutch Size
- 1–8 eggs
- Egg Description
- Variable rusty brown with brownish or chestnut markings.
- Condition at Hatching
- Helpless and covered in down.
Expanding breeding range and may be increasing in numbers.
- Sodhi, N. S., L. W. Oliphant, P. C. James, and I. G. Warkentin. 1993. Merlin (Falco columbarius). In The Birds of North America, No. 44 (A. Poole and F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists' Union.