Priority
Bird Populations and Habitats
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Mountaintop stunted conifer
woodland |
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Bicknell's Thrush
(AI=5, PT=3, TB=2;
% population -50?) |
Roughly 28,400 ha of mountaintop habitat may support 50%
of the world's breeding population of this species. A monitoring program for this species and its
habitat is urgently needed. |
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Northern hardwood - mixed
forest |
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Canada Warbler
(AI=5, PT=5, TB=3;
% population - 1.2) |
Declining nearly throughout its range, this species favors
dense understory, especially in wet areas. |
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Black-throated Blue Warbler
(AI=5, PT=2, TB=2;
% population - 5.1) |
Large and apparently stable population; requires dense
deciduous understory, especially hobblebush. |
Objective: Roughly 175,000 ha of northern hardwood forest is required to support
the
entire habitat suite of species (at optimum densities), with 110,000 ha suitable to support
50,000-55,000 pairs of Black-throated Blue Warblers and 15,000-20,000 pairs of Canada
Warblers.
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Early successional
forest/edge |
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Golden-winged Warbler
(AI=2, PT=3,
TB=4;
% population - <1) |
Rare in this area, but with exacting habitat needs for
shrubby growth at lower elevations that results from farmland abandonment or beaver
activity. |
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American Woodcock
(AI=3, PT=5,
TB=3;
% population - <1) |
Shows steep population declines; requires combination
of forest clearings, second-growth hardwoods, and moist soils for foraging.
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Chestnut-sided Warbler
(AI=5, PT=5,
TB=2;
% population - 1.7) |
Abundant, yet declining, this species has a broad
tolerance of disturbed and successional forest habitats.
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Olive-sided Flycatcher
(AI=3, PT=5,
TB=3;
% population - <1) |
Could be included as a forest edge bird, but can also
occur around natural openings such as peatlands. This bird is experiencing a mysterious
and precipitous population decline nearly throughout its range. |
Objective: Roughly 127,000 ha of disturbed or successional habitat is required to
sustain 125,000 pairs of Chestnut-sided Warblers, with 1,000 ha managed specifically to
support 500+ pairs of Golden-winged Warblers.
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Mature coniferous forest |
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Bay-breasted Warbler
(AI=2, PT=4,
TB=3;
% population - <1) |
This is a high priority species, but is rare in this
physiographic area; favors mature spruce.
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Blackburnian Warbler
(AI=5, PT=2,
TB=2;
% population - 2.6) |
This species occurs here in the highest relative
abundance of any physiographic area and may better represent the spruce-fir warbler
community.
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Spruce Grouse
(AI=2 , PT=3, TB=3; % population - <1) |
Listed as endangered in New York; represents disjunct
boreal bird species community with very specific habitat needs.
|
Objective: Roughly 125,000 ha of mature coniferous forest is required to support
50,000-55,000 pairs of Blackburnian Warblers, with 5,000+ ha (25-30 patches) at low
elevations managed (mixture of age classes and ericaceous ground cover) to support 300-
500 pairs of Spruce Grouse and other boreal species.
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Complete
Physiographic Area Priority Scores (Zipped, Dbase5 file 288K)
Key to Abbreviations: AI-Area Importance, PT-Population Trend, TB-Threats to Breeding.
Priority Setting Process: General /
Detailed |