Mourning Warbler (Oporornis philadelphia)


Group	Warblers
Code	ABPBX11030
Order	Passeriformes
Family	Parulidae
Author	(Wilson, 1810)
Rank	G5 (definitions)
Occurrence	LM (definitions)
Scale	S (definitions)

County List:


Western UP	all
Eastern UP	all
Northern LP	Arenac, Antrim, Alpena, Alcona, Midland, Missaukee, Montmorency, Newaygo, Mecosta, Leelanau, Wexford, Roscommon, Manistee, Presque Isle, Oceana, Otsego, Oscoda, Osceola, Ogemaw, Crawford, Clare, Emmet, Cheboygan, Charlevoix, Benzie, Bay, Mason, Lake, Isabella, Iosco, Gladwin, Grand Traverse
Southern LP	Allegan, Montcalm, Muskegon, Macomb, Oakland, Saginaw, Livingston, Wayne, Van Buren, Tuscola, Sanilac, St. Clair, Ottawa, St. Joseph, Cass, Eaton, Clinton, Branch, Berrien, Barry, Lapeer, Calhoun, Genesee, Kent, Ionia, Gratiot, Kalamazoo, Hillsdale, Huron, Ingham

Rule:

Forested or Mixed Forested/Nonforested Landscapes

      (Any Forested Uplands (Regen or Sap))
      or (Any Forested Lowlands (Regen or Sap))
      or Upland Brush
      or Lowland Brush
   containing:
      Perches

view decision rule term definitions

Habitat List:

Habitats	Regen	Sap	Pole	Sm Saw	Lg Saw	Uneven
Aspen	YES	YES	no	no	no	-
Paper Birch	YES	YES	no	no	no	-
Oak	YES	YES	no	no	no	no
Assorted Hardwoods	YES	YES	no	no	no	no
Northern Hardwoods	YES	YES	no	no	no	no
Spruce/Fir	YES	YES	no	no	no	no
Hemlock	YES	YES	no	no	no	no
Jack Pine	YES	YES	no	no	no	no
Red Pine	YES	YES	no	no	no	no
White Pine	YES	YES	no	no	no	no
Conifer Plantations	YES	YES	no	no	no	-
Mixed Upland Hardwoods	YES	YES	no	no	no	no
Mixed Northern Hardwoods	YES	YES	no	no	no	no
Mixed Upland Conifer	YES	YES	no	no	no	no
Mixed Pine	YES	YES	no	no	no	no
Swamp Hardwoods	YES	YES	no	no	no	no
Balsam Poplar & Swamp Aspen & Swamp Birch	YES	YES	no	no	no	no
Bottomland Hardwoods	YES	YES	no	no	no	no
Tamarack	YES	YES	no	no	no	no
Northern White Cedar	YES	YES	no	no	no	no
Black Spruce	YES	YES	no	no	no	no
Mixed Lowland Hardwoods	YES	YES	no	no	no	no
Mixed Lowland Conifer	YES	YES	no	no	no	no
Non-Forested	Upland Brush, Lowland Brush
Special Features	Perches

view size class definitions

Literature:

McPeek, G. A. 1991. Mourning Warbler. Pages 442-443 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: The Mourning Warbler breeds in a wide array of plant communities, from coniferous to deciduous, provided there is a partially open canopy and both herb and shrub cover. It occupies forest-edge habitats, and is also found in aspen-birch stands. In the Atlas Habitat Survey, nine habitat types were represented in 61 observations. Reports indicate a preference for wet and mesic habitats (72%); and among forest types, 62% were classified as young or second-growth vegetation.

Mourning Warblers nest on or near the ground in dense tangles of raspberry or blackberry vines, and in extensive growths of jewelweed.

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: Dense underbrush on the margin of a lowland swamp or bog; bushy hillsides, forest clearings grown up to brambles, shrubs, and saplings.

Special Habitat Requirements: Extensive stands of dense saplings, shrubs.

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

Habitat: Clearings, thickets, slashings, undergrowth. Breeds in brushy northern habitats, including dense shrubbery in old deciduous woods clearings, brush cut-over lands, lowland raspberry and blackberry thickets, or bog and marsh edges; often in temporary habitats, growing up after fires or clearcuts.

Diet: Probably mostly insects. Details of the diet are poorly known, but has been seen foraging for caterpillars, beetles, and other insects; also eats spiders.

Nest: Usually placed on ground next to shrub, at base of weeds, in raspberry or blackberry briers, or among fern, goldenrod, or grass tussocks. Also sometimes in bush within a couple of feet of the ground. Nest is an open bulky cup made of leaves, with a core of weeds and coarse grasses, lined with fine grass and hair.

Conservation Status: Because it inhabits shrubby second growth in both summer and winter, less vulnerable than some warblers to loss of habitat.