A small dark falcon that hunts small birds, found throughout most of Eurasia and North America.
- Falco columbarius, family Falconidae
- As well as grouse watching, Dan and his colleagues also give informal tours around the reserve for young ornithologists keen to spot merlins, buzzards and ospreys.
- They include pine marten, wildcat, stoat and weasel as well as golden eagles, merlin, peregrine falcon, golden plover and in time black grouse and capercaillie.
- Fall, of course, is the best time to see migrants: peregrine falcons, merlins, and flocks of tree swallows at Assateague; northern gannets just offshore; and plenty of Canadian and snow geese soaring above.