Bay-breasted Warbler
Common
Name: Bay-breasted Warbler
(BBWA)
Scientific
Name:
Dendroica
castanea
Global/Continental
Conservation Status: Not on the IUCN 2004 Red List
National-level
Conservation Status:
Nothing other than coverage by the Migratory Bird Treaty Act
Key
Reference(s):
BNA No. 206 (Williams 1996)
Distribution:
Breeds from extreme se Yukon, ne British Columbia, sw Mackenzie, n
Alberta, n Saskatchewan, c Manitoba, c Ontario, c Quebec, New Brunswick,
Prince Edward Island, Nova Scotia, and w Newfoundland south to e-c British
Columbia, c Alberta, c Saskatchewan, s Manitoba, n-c and ne Minnesota, n
Michigan, s Ontario, s Quebec, n New York, n Vermont (rare), n New
Hampshire, and s Maine. Winters
from
Costa Rica
(Caribbean lowlands),
Panama
(Caribbean slope throughout, Pacific slope from eastern Veraguas eastward)
east through
Colombia
to nw
Venezuela
(including Curacao and
Tortuga
Island
), casually in e
Venezuela
and
Trinidad
. Casual in coastal s
California
and Georgia. Recorded casually
in early winter north to the s
United States
(AOU 1998).
Habitat
Associations:
Boreal coniferous forest (especially spruce, balsam fir) with
openings, occasionally adjoining second growth or deciduous scrub; in
migration and winter, a variety of wooded habitats, but primarily
second-growth forest and forest edge (AOU 1998).
Source(s)
of Research/monitoring Needs (Number in ( ) is Physiographic Area number):
Adirondack Mts Bird Conservation Plan (26); Canadian Action Plan
(Dunn 2002); BNA No. 206 (Williams 1996); PIF Monitoring Needs document
(Partners in Flight Science Committee 20004)
PIF
Continental Plan Monitoring Needs Category: Mo2 (BBS trends have very
low precision) and Mo3 (species with inadequate northern coverage).
RESEARCH/MONITORING NEEDS (source(s) of needs)
Monitoring
- Priority
monitoring action – Conduct boreal surveys (PIF Monitoring Needs
doc)
- Second
priority monitoring action – Conduct migration monitoring (PIF
Monitoring Needs doc)
- Non-linear
analysis of BBS data to improve precision (Canadian Action Plan)
- Verify
population declines of forest birds, including BBWA, thru independent
measures & identify causes of declines (Adirondack Mts)
Habitat
Needs/Ecology/Life History
- Determine
specific habitat needs of BBWA (Adirondack Mts)
- BBWA
ecology/life history information - Metabolism & temp regulation in BBWA (BNA); Information on
mating systems, sex ratio, pair formation, nest selection &
building, egg-laying & reproductive success (BNA); Patterns and
repertoire of songs, geographic difference in songs, and social
context (BNA)
Effects
of Management Practices
- Better
understanding of the role of stand age and stand structure on habitat
quality , reproductive status, and survival of BBWA (Adirondack Mts)
Landscape
- Better
understanding of landscape-level effects of land-use practices on
forest bird populations including BBWA (Adirondack Mts)
- Apply
GAP analysis to
Adirondack
Park
to identify most suitable forest stands and ownership (Adirondack Mts)
Migration
- Control
& physiology of migration in BBWA (BNA)
Demographics
- Determine
demography of BBWA in non-budworm years (Canadian Action Plan)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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