Merlin

The merlin is a compact falcon distributed throughout the Northern Hemisphere. It primarily occupies open country, including grasslands, coasts, dunes, marshlands, steppes, and deserts, although northern populations frequently breed in coniferous forest. Different subspecies follow distinct migration routes between northern breeding regions and wintering areas farther south. Adults measure 25–33 cm long, have a wingspan of 60–68 cm, and average about 195 g. Males have darker, often slate-colored upperparts, while females are generally larger and browner. (Animal Diversity Web)

Merlins specialize in capturing small birds during rapid aerial pursuits, though insects and small mammals may supplement the diet. Nest sites vary with habitat: pairs use simple ground scrapes in open country, shelter among dune grasses, or appropriate abandoned crow nests in woodland. Egg laying occurs from April through June, depending on latitude. The female conducts most incubation, but the male also participates. A usual clutch contains four or five eggs, and incubation lasts 25–32 days before the eggs hatch at intervals. (Animal Diversity Web)