Bachman's Sparrow
Common
Name: Bachman's Sparrow
Scientific
Name:
Aimophila
aestivalis
Global/Continental
Conservation Status: IUCN
2004 Red List – NT (Near Threatened)
National-level
Conservation Status:
U.S.
– Bird of Conservation Concern
Key
Reference(s):
BNA No. 38 (Dunning 1993)
Distribution:
Breeds from s-c Missouri, c and ne Illinois, c Indiana, c Ohio, sw
Pennsylvania (now rarely), and c Maryland south to e Oklohama, e Texas,
the Gulf coast, and s-c Florida; now generally absent (or very local) as a
breeding bird in the ne portion of the breeding range north of Tennessee
and North Carolina. Winters
from e
Texas
, the
Gulf states
, and Atlantic coast (from se
North Carolina
) south through the remainder of the breeding range and to s
Florida
(AOU 1998).
Habitat
Associations:
Open, grassy pine woods with scattered bushes or understory, brushy
or overgrown hillsides, and overgrown fields with thickets and brambles (AOU
1998).
Source(s)
of Research/monitoring Needs (Number in ( ) is Physiographic Area number):
Mid Atlantic Coastal Plain Bird Conservation Plan (44); Interior
Low Plateau Bird Conservation Plan (14); Northern Cumberland Plateau Bird
Conservation Plan (21); Peninsular Florida Bird Conservation Plan (02);
Mid-Atlantic Piedmont Bird Conservation Plan (10); Texas Avian Research
Projects- TARP (Texas Partners in Flight 2001); PIF Monitoring Needs
document (Partners in Flight Science Committee 2004).
PIF
Continental Plan Monitoring Needs Category: Mo2 (BBS trends have very
low precision)
RESEARCH/MONITORING NEEDS (source(s) of needs)
Monitoring
- Priority
monitoring action – Improve the Breeding Bird Survey (BBS) (PIF
Monitoring Needs doc)
- Second
priority monitoring action – Conduct new winter surveys (PIF
Monitoring Needs doc)
- Additional/Supplemental
BACS Surveys - Develop supplemental monitoring programs to determine regional
population levels & trends (Mid Atlantic Piedmont); Rangewide
survey for BACS is needed (TARP - West Gulf Coastal Plain)
- Conduct
a status survey of BACS and an assessment of management techniques to
improve nesting habitat for this species in the oak glades of the Gus
Engeling WMA (TARP - West Gulf Coastal Plain)
- Identify
large blocks of pine barrens for conservation action for BACS (Mid
Atlantic Piedmont)
Effects
of Management Practices
- Effects
of silvicultural practices on BACS - Influence of site preparation techniques, stocking levels,
clearcut size, timing, harvest technique, and other silvicultural
practices on breeding bird communities (Mid Atlantic Coastal Plain);
influence of stocking rates, time to commercial thinning, & time
to final timber harvest on wildlife values (Mid Atlantic Plain);
examine economic/wildlife tradeoffs in open canopy management (Mid
Atlantic Coastal Plain); current status, distribution, nesting
ecology, and nesting success of BACS in relation to forest management
practices (TARP - West Gulf Coastal Plain)
- Effects
of chemical & mechanical treatments on bird habitat (including
BACS) (Interior Low Plateau and
Northern Cumberland Plateau
)
- Effects
of prescribed burning on breeding & wintering birds of prairie
habitats (including BACS) (Peninsular Florida)
- see
needs in "Monitoring"
Habitat
Restoration
- Determine
influence of habitat restoration on colonization & breeding
success of BACS (Mid Atlantic Piedmont)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
|
