Merlin (Falco columbarius)

Group Vultures, Eagles, Hawks, and Falcons
Code ABNKD06030
Order Falconiformes
Family Falconidae
Author Linnaeus, 1758
Rank G5 (definitions)
Occurrence SM (definitions)
Scale C (definitions)

County List:

Western UP Baraga, Delta, Gogebic, Iron, Keweenaw, Marquette, Ontonagon, Houghton
Eastern UP all
Northern LP Charlevoix, Alpena, Presque Isle, Antrim
Southern LP none

Rule:

Forested or Mixed Forested/Nonforested Landscapes

      (Any Upland Conifer Except Conifer Plantations (Sm Saw or Lg Saw or Uneven)) 
      or (Any Upland Mixed (Sm Saw or Lg Saw or Uneven))
      or (Any Lowland Mixed (Sm Saw or Lg Saw or Uneven))
   adjacent to:
      Lake
      or Sedge Meadow 
      or Bog
      or Grass 
      or Upland Brush
view decision rule term definitions

Habitat List:

Habitats Regen Sap Pole Sm Saw Lg Saw Uneven
Aspen nonononono-
Paper Birch nonononono-
Oak nononononono
Assorted Hardwoods nononononono
Northern Hardwoods nononononono
Spruce/Fir nononoYESYESYES
Hemlock nononoYESYESYES
Jack Pine nononoYESYESYES
Red Pine nononoYESYESYES
White Pine nononoYESYESYES
Conifer Plantations nonononono-
Mixed Upland Hardwoods nononoYESYESYES
Mixed Northern Hardwoods nononoYESYESYES
Mixed Upland Conifer nononoYESYESYES
Mixed Pine nononoYESYESYES
Swamp Hardwoods nononononono
Balsam Poplar & Swamp Aspen & Swamp Birch nononononono
Bottomland Hardwoods nononononono
Tamarack nononononono
Northern White Cedar nononononono
Black Spruce nononononono
Mixed Lowland Hardwoods nononoYESYESYES
Mixed Lowland Conifer nononoYESYESYES
Non-ForestedGrass, Upland Brush, Lake, Sedge Meadow, Bog or Muskeg
Special FeaturesEdges, Riparian

view size class definitions

Literature:

Binford, L. C. 1991. Merlin. Pages 178-179 In: R. Brewer, G. A. McPeek, and R. J. Adams, Jr. (eds.) The atlas of breeding birds of Michigan. Michigan State University Press, East Lansing. 594 pp.

Habitat: Nesting is restricted to forest edge adjacent to extensive openings. The forests, including residential woodlots, may be mixed or coniferous, wet, mesic, or dry, mature or second-growth. Old nests of other birds, especially the American Crow are used. Nests are almost invariably in conifers. Six Michigan nests were rather well concealed 10.4 to 13.7 m up near the tops of pines, two each in eastern white, jack, and red pine. In Ontario, 18 of 31 nests were in spruce.

Most localities where breeding has been confirmed or is probable are on or close to the shores of the Great Lakes especially Lake Superior. Even most inland locales, past and present, are near lakes, impoundments, marshes, or extensive open bogs. This association with aquatic habitats reflects the Merlin's need for large openings in which to chase and catch exposed birds on the wing; water holds no attraction but its presence does add aquatic birds to the menu.


DeGraaf, R. M. and D. D. Rudis. 1986. New England wildlife: habitat, natural history, and distribution. GTR NE-108. Broomall, PA:USDA, Forest Service, Northeastern Forest Experiment Station. 491 pp.

Habitat: Breeding: Open coniferous forest, marshes, fields in migration.


Kaufman, K. 1996. Lives of North American Birds. Houghton Mifflin Company, Boston, Massachusetts. 675 pp.

The Merlin is generally found in wild places, but since about 1960 it has become a common urban bird in several towns on the northern prairies; there it nests and remains to winter, relying on a steady supply of House Sparrows as prey.

Habitat: Open conifer woodland, prairie groves; in migration, also foothills, marshes, open country. Generally breeds in semi-open terrain having trees for nest sites and open areas for hunting. Habitat varies from coniferous forest in north and on northwest coast to isolated deciduous groves and suburban yards on prairies. May winter in more open areas such as grasslands, coastal marshes.

Diet: Mostly small birds. Often specializes in locally abundant species of birds (such as Horned Larks on the plains, House Sparrows in urban settings, small sandpipers on coast). Also feeds on large insects (especially dragonflies), rodents, bats, reptiles.

Nest: Site is usually in tree in old nest of hawk, crow, or magpie, 10-60 feet above ground. Sometimes in large tree cavity, on cliff ledge, or on ground. Usually little or no material added to existing nest.


Doepker, R. 2000. Personal Communication.

They do not utilize lowland conifers or any lowland types.