White-throated Swift
Common
Name: White-throated Swift
(WTSW)
Scientific
Name:
Aeronautes
saxatalis
Global/Continental
Conservation Status: Not on IUCN 2004 Red List
National-level
Conservation Status:
Nothing other than coverage by Migratory Bird Treat Act
Key
Reference(s):
BNA No. 526 (Ryan and Collins 2000)
Distribution:
Breeds from extreme s-c British Columbia, Idaho, Montana, and sw
South Dakota south through the Pacific and sw states (including the
Channel Islands off California) to s Baja California (a questionable sight
record of nesting on Guadulupe Island in 1892, unreported there since
1922), east to w Nebraska, ne and c New Mexico, and w Texas (to Val Verde
County), and south through the interior of Mexico to Guatemala, El
Salvador, and Honduras. Winters
from c
California
, c
Arizona
, and, rarely, s
New Mexico
(casually further north) south to the limits of the breeding range in
Middle America
(AOU 1998).
Habitat
Associations:
Primarily mountainous country, especially near cliffs and canyons,
foraging over forest and open situations; nests in cliffs, occasionally in
buildings and on seacliffs (Subtropical and Temperate zones) (AOU 1998).
Source(s)
of Research/monitoring Needs (Number in ( ) is Physiographic Area number):
Colorado Bird Conservation Plan - Colorado Plateau (87); New Mexico
Bird Conservation Plan; BNA No. 526 (Ryan and Collins 2000); Canadian
Action Plans (Dunn 2002); 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 – Conduct species-specific surveys (PIF Monitoring
Needs doc); (similar) Breeding/roosting site monitoring - Test
and evaluate monitoring protocols for WTSW at breeding sites (
Colorado
); conduct long-term daily counts at known breeding and roosting sites
to improve trend determination (Canadian Action Plan)
- Second
priority monitoring action – Conduct Mexican species-specific
surveys (PIF Monitoring Needs doc)
- Identify
the causes for population decline in WTSW (
Colorado
)
- Status
assessments
- Determine population status of WTSW (BNA); periodically assess
population status in
Canada
(CanAP)
- Confirm
possible breeding site of WTSW in
British Columbia
(Canadian Action Plan)
Habitat
Needs/Ecology/Life History
- Determine
whether habitat around colonies and/or nest sites is adequate for WTSW
(
Colorado
)
- Information
on intra-familial relationships, food habitats, range &
significance of vocalizations, reproductive phenology, nest-site
requirements, male-female roles, nesting details, development of
young, nest spacing, nest & roost site fidelity, dispersion,
molts, plumages (BNA)
Effects
of Human Development/Disturbance
- Effects
of recreational activities on cliff-nesting birds (including WTSW) (
New Mexico
)
Migration
- Identify
the key migratory routes, stopover areas, behaviors, and habitats of
WTSW (
Colorado
, BNA)
Wintering
- Identify
principal wintering areas for WTSW in
Mexico
, Central, or South America (
Colorado
, BNA)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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