Yellow-billed Magpie
Common
Name: Yellow-billed Magpie
(YBMA)
Scientific
Name: Pica
nuttalli
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. 180 (Reynolds 1995)
Distribution:
Resident in California in the Sacramento and San Joaquin valleys
(from Shasta County south to Kern County), and in valleys of the coast
ranges from San Francisco Bay south to Santa Barbara County (formerly to
Ventura County) Casual north
to near the Oregon border in n California (Siskiyou County) (AOU 1998).
Habitat
Associations:
Open oak woodland interspersed with grasslands or cultivated lands,
open riparian woodland, and savanna (AOU 1998).
Source(s)
of Research/monitoring Needs: California Bird
Conservation Plan; BNA No. 180 (Reynolds 1995); 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)
- Information
on population ecology of YBMA (especially dispersal) (BNA)
Habitat
Needs/Ecology/Life History
- Determine
habitat requirements for YBMA breeding colonies (
California
)
- Information
on behavioral ecology of YBMA (including vocal communication, mate
choice) (BNA)
Effects
of Management Practices
- Effects
of habitat alteration & fragmentation on YBMA breeding colonies (
California
)
Effects
of Human Development/Disturbance
- Effects
of apparently "benign" land uses (e.g. "ranchette"
development, clustered houses, water diversion) on YBMA (BNA)
Landscape
- See
needs under "Effects of Management Practices"
Genetics/Taxonomy/Systematics
- Study
the taxonomic relationship between YBMA and Black-billed Magpie (BNA)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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