Keyphrases
Geographic Variation
100%
Empidonax Traillii
100%
Willow Flycatcher
100%
Plumage Coloration
100%
Taxonomic Groups
37%
Migrants
37%
Color Value
37%
Electronic Devices
25%
Colorimeter
25%
Southwestern US
12%
Colorado River
12%
Avian Species
12%
Mexico
12%
Ecological Study
12%
Migration Patterns
12%
Predictive Power
12%
Breeding Sites
12%
Breeding Range
12%
Sources of Variation
12%
Bird Species
12%
Ecological Questions
12%
Intergradation
12%
Non-breeding
12%
Flycatcher
12%
Unknown Origin
12%
Discriminant Model
12%
Migrant Species
12%
Taxonomist
12%
Multiple Methods
12%
Reasonable Certainty
12%
Coloration Pattern
12%
Agricultural and Biological Sciences
Empidonax
100%
Plumage
100%
Breeding Site
25%
Avian Species
12%