Priority
Bird Populations and Habitats
|
Coastal saltmarsh |
|
![PIF](Pif_sm.JPG) |
Nelson's Sharp-tailed Sparrow
|
Nearly entire range of subvirgatus race occurs
here; status and habitat requirements poorly known. |
|
![PIF](Pif_sm.JPG) |
American Black Duck
|
Very important breeding and wintering populations;
declining. |
Objective: Numerical
population objective and acreage requirements not yet established. |
|
Mountaintop stunted conifer woodland |
|
![PIF](Pif_sm.JPG) |
Bicknell's Thrush
|
This region supports more than 50% of the worlds
breeding population of this species. A monitoring program for this species and its habitat
is urgently needed. |
Objective: Ensure the protection
of all sites that support populations of Bicknell's Thrush "large enough to be
considered source populations for other sites," and as many additional high-elevation
habitat patches with smaller populations as possible. |
|
Coniferous forest |
|
![PIF](Pif_sm.JPG) |
Bay-breasted
Warbler |
Populations cycle with spruce-budworm outbreaks. |
|
![PIF](Pif_sm.JPG) |
Cape
May Warbler |
Nests in stands > 50 years old, > 15 m tall, with
well-developed crowns. |
|
![PIF](Pif_sm.JPG) |
Spruce
Grouse |
Requires mixture of age classes and ericaceous ground
cover. |
|
![PIF](Pif_sm.JPG) |
Blackburnian
Warbler |
Roughly 25% of global population breeds here; increasing
in numbers since 1966. |
|
![PIF](Pif_sm.JPG) |
Red
Crossbill |
Eastern spruce-fir population reduced greatly from
historic numbers; current status poorly known. |
Objective: Roughly 400,000
ha of mature coniferous and mixed forest is required to support 330,000 pairs of
Blackburnian Warblers, with sufficient habitat to support xxx pairs of Spruce Grouse and
other boreal species. |
|
Northern hardwood forest |
|
![PIF](Pif_sm.JPG) |
Canada Warbler
|
Declining nearly throughout its range, this species favors
dense understory, especially in wet areas. |
|
![PIF](Pif_sm.JPG) |
Black-throated Blue Warbler |
Large and apparently stable population; requires
dense deciduous understory, especially hobblebush. |
|
![PIF](Pif_sm.JPG) |
Veery
|
Nearly 20% of global population; declining. Favors dense
understory. |
Objective: Roughly 2
million ha of northern hardwood forest is required to support the entire habitat suite of
species, with 520,000 ha suitable to support 250,000 pairs of Black-throated Blue Warblers
and 200,000 pairs of Canada Warblers. |
|
Boreal peatland/edge/shrub |
|
![PIF](Pif_sm.JPG) |
American Woodcock
|
Large, declining population. Requires mix of age
classes, wet ground. |
|
![PIF](Pif_sm.JPG) |
Chestnut-sided Warbler
|
Generalist in disturbed and regenerating forest. |
|
![PIF](Pif_sm.JPG) |
Olive-sided Flycatcher
|
This bird is experiencing a mysterious and precipitous
population decline nearly throughout its range. Uses isolated large trees, snags for
feeding. |
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 |