Lucy's Warbler
Common
Name: Lucy's Warbler (LUWA)
Scientific
Name:
Vermivora
luciae
Global/Continental
Conservation Status: Not on IUCN 2004 Red List
National-level
Conservation Status:
Mexico
- Normas Oficiales Mexicanas (NOM) para la Proteccion Ambiental (Official
Mexican Standards for Environmental Protection) - Threatened
Key
Reference(s):
BNA No. 318 (Johnson et al. 1997)
Distribution:
Breeds from se California (north to Inyo County), s Nevada, and s
Utah south to ne Baja California, s Arizona, n Sonora, sw New Mexico, and
w Texas (Brewster, Hudspeth, and Presidio counties), and once in extreme
sw Colorado. Winters in w
Mexico
from s
Sonora
south to
Oaxaca
, casually north to central coastal and s
California
and upper
Rio Grande
valley
of
Texas
(AOU 1998).
Habitat
Associations:
Gallery
Forest
, Arid Lowland Scrub, primarily mesquite or mesquite-cottonwood woodland
along streams and washes, locally also in montane canyons with broadleaf
woodland; in migration and winter, arid brush and thickets (0-1500 m) (AOU
1998).
Source(s)
of Research/monitoring Needs: Arizona Bird Conservation
Plan; Nevada Bird Conservation Plan; New Mexico Bird Conservation Plan;
BNA No. 318 (Johnson et al. 1997); 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: The
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)
- Supplemental
LUWA Surveys
- LUWA population monitoring needs to be established; Christmas Bird
Counts need to be expanded in west Mexico (BNA); Establish point
counts for LUWA (Nevada); Determine viable population size and current
population distribution of LUWA in Arizona (Arizona); Determine if
there are unrecorded breeding populations of LUWA in
Chihuahua
? (BNA)
- See
needs under “Nest Parasitism”
Habitat
Needs/Ecology/Life History
- More
Information about LUWA Habitat Requirements - Study LUWA habitat use and breeding densities
(
Nevada
); Determine if natural nesting sites are a limiting factor for LUWA?
(
Arizona
); Determine LUWA habitat requirements in
New Mexico
(
New Mexico
)
- More
Information on LUWA Life History - General LUWA natural history & ecological information (song
types & vocalization patterns, breeding/nesting phenology, mating
& general behavior, daily time budgets & activities (BNA);
Test these assumptions – LUWA is primarily monogamous, only male
sings, only female builds nest & incubates (BNA)
Species
Interactions
- Do
needs for Ash-throated Flycatchers adequately represent a cohort of
lowland riparian bird species including LUWA? (
Nevada
)
Nest
Parasitism
- Monitor
LUWA nesting populations to determine if cowbird parasitism is a
threat (
Arizona
)
Migration
- More
information needed on LUWA habitat during migration; is migration
nocturnal or diurnal? Singly or in flocks? Speed of migration (time
from wintering to breeding grounds) (BNA)
Wintering
- More
information is needed on LUWA winter habitat (BNA)
Demographics
- Sexing
and banding programs are needed similar to those in southeastern
Arizona (BNA)
[Link
to References]
[Link
to PIF Bird Conservation Plans]
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