Thick-billed Kingbird
Common
Name: Thick-billed
Kingbird (TBKI)
Scientific
Name:
Tyrannus crassirostris
Global/Continental
Conservation Status: NOT on IUCN 2004 Red List
National-level
Conservation Status:
Nothing other than coverage under the Migratory Bird Treaty Act
Key
Reference(s):
BNA No. 604 (Lowther 2002)
Distribution:
Breeds from se Arizona (Patagonia, Guadalupe Mountains), sw New
Mexico (Guadulupe Canyon), Sonora, sw Chihuahua, w Texas (Big Bend),
Sinaloa, and w Durango south to Guerrero, México, Morelos, s Puebla and w
Oaxaca. Winters from
Sonora
south through the breeding range to
Chiapas
, casually to s-c
Guatemala
(Escuintla) (AOU 1998).
Habitat
Associations:
Gallery
Forest
, Tropical Deciduous Forest Edge (0 – 1850 m; Tropical and lower
Subtropical zones) (AOU 1998).
Source(s)
of Research/monitoring Needs: BNA No. 604 (Lowther 2002);
PIF Monitoring Needs document (Partners in Flight Science Committee 2004)
PIF
Continental Plan Monitoring Needs Category: Mo1 (Essentially no data on
population trend); Mo4 (2/3 or more of Western Hemisphere breeding range
is south of
U.S.
(PIF Monitoring Needs doc)
RESEARCH/MONITORING NEEDS (source(s) of needs)
Monitoring
- Priority
monitoring action – Conduct South American surveys (PIF Monitoring
Needs doc)
- Second
priority monitoring action – Conduct border (U.S.-Mexico) bird
surveys (PIF Monitoring Needs doc)
- High
priority candidate for rapid status assessment (PIF Monitoring Needs
doc)
Habitat
Needs/Ecology/Life History
- Practically
any information on the ecology, biology, etc. of TBKI is needed (BNA)
Species
Interactions
- How
does TBKI coexist with 1-3 other species of Tyrannus
that share its range? Comparative studies of diet, foraging, &
habitat selection (BNA)
Genetics/Taxonomy/Systematics
- See
needs under “Species Interactions”
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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