Pinyon Jay
Common
Name: Pinyon Jay (PIJA)
Scientific
Name:
Gymnorhinus
cyanocephalus
Global/Continental
Conservation Status: IUCN
2004 Red List – VU (Vulnerable)
National-level
Conservation Status:
Nothing other than coverage by the Migratory Bird Treaty Act.
Key
Reference(s):
BNA No. 605 (Balda 2002)
Distribution:
Breeds from c Oregon, s Idaho, c Montana, w South Dakota, and nw
Nebraska south through California (primarily the eastern and southern
mountains) to n Baja California, s Nevada, nw and e-c Arizona, c (probably
also s) New Mexico and w Oklahoma. Winters
throughout the breeding range and irregularly from nw Oregon, s
Washington, n Idaho, and c Montana south to se California, se Arizona, n
Chihuahua, and w and c Texas, and east to w Nebraska and w Kansas,
casually to North Dakota and to coastal California (including the Channel
Islands) (AOU 1998).
Habitat
Associations:
Pinyon-juniper woodland; in nonbreeding season also scrub oak and
sagebrush (AOU 1998).
Source(s)
of Research/monitoring Needs: Arizona Bird Conservation
Plan; Nevada Bird Conservation Plan; New Mexico Bird Conservation Plan;
BNA No. 605 (Balda 2002); PIF Monitoring Needs document (Partners in
Flight Science Committee 2004)
PIF
Continental Plan Monitoring Needs Category: ** (Long-term population
trend monitoring considered adequate, but some issues (e.g., bias) may not
be accounted for)
RESEARCH/MONITORING NEEDS (source(s) of needs)
Monitoring
- Priority
monitoring action – NOTE: Breeding
Bird Survey (BBS) provides acceptable data at the continental level (PIF
Monitoring Needs doc)
- Second
priority monitoring action – Improve the BBS (PIF Monitoring Needs
doc)
- Third
priority monitoring action – Conduct new winter surveys (PIF
Monitoring Needs doc)
- Study
population status and trends for PIJAs (
Nevada
)
- Determine
amount and location of mature pinyon-juniper woodlands in
Arizona
(
Arizona
)
- Research
on populations other than those at the southern edge of their range;
how different habitat types influence life history parameters (BNA)
Habitat
Needs/Ecology/Life History
- Social
system of PIJA - why some individuals help & others don't, why
some breed in 1st year and other don't, why some disperse and some
don't, individual & kin recogition (BNA)
Effects
of Management Practices
- Effects
of conversion of pinyon-juniper woodland on PIJA & associated
species (BNA)
Landscape
- Determine
the effects of fragmentation, isolation and other landscape level
effects on the productivity of PIJAs (
Arizona
)
- Study
the relationship between PIJAs and the pinyon-juniper landscape (
Nevada
)
Species
Interactions
- Testing
the effectiveness of using PIJA as an umbrella species for managing
pinyon- juniper avian communities (
New Mexico
)
- Role
of insects & rodents as competitors with PIJA for pinyon seeds
(BNA)
- Coevolutionary
relationship between PIJA and pinyon pines - influence of PIJA
harvesting on seed size & production schedules (BNA)
Predation
- Determine
if Common Raven nest predation is a serious problem for PIJAs (
Arizona
)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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