Animalia > Chordata > Aves > Passeriformes > Tyrannidae > Empidonax > Empidonax occidentalis

Empidonax occidentalis (Cordilleran Flycatcher)

Language: Spanish

Wikipedia Abstract

The Cordilleran flycatcher (Empidonax occidentalis) is a small insect-eating bird. It is a small Empidonax flycatcher, with typical length ranging from 13 to 17 cm. Adults have olive-gray upperparts, darker on the wings and tail, with yellowish underparts; they have a conspicuous teardrop-shaped white eye ring, white wing bars, a small bill and a short tail. Many species of this genus look closely alike. The best ways to distinguish species are by voice, by breeding habitat, and by range. This bird is virtually identical to the Pacific-slope flycatcher. These two species were formerly considered a single species known as western flycatcher. The Pacific-slope flycatcher is a breeding bird of the Pacific Coast forests and mountain ranges from California to Alaska; the Cordilleran is a breedi
View Wikipedia Record: Empidonax occidentalis

Infraspecies

EDGE Analysis

Uniqueness Scale: Similiar (0) 
1
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
10
 Unique & Vulnerable (100)
ED Score: 3.20644
EDGE Score: 1.43662

Attributes

Adult Weight [1]  11 grams
Birth Weight [1]  2 grams
Breeding Habitat [2]  Temperate western forests, Mexican pine-oak forests
Wintering Geography [2]  Mexican Highlands
Wintering Habitat [2]  Mexican pine-oak forests
Diet [3]  Carnivore (Invertebrates), Frugivore
Diet - Fruit [3]  10 %
Diet - Invertibrates [3]  90 %
Forages - Mid-High [3]  40 %
Forages - Understory [3]  30 %
Forages - Ground [3]  30 %
Clutch Size [5]  4
Clutches / Year [1]  1
Fledging [1]  16 days
Global Population (2017 est.) [2]  2,900,000
Incubation [4]  15 days
Maximum Longevity [1]  7 years
Female Maturity [1]  0 years 12 months
Male Maturity [1]  1 year

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Incubation period and immune function: a comparative field study among coexisting birds, Maria G. Palacios, Thomas E. Martin, Oecologia (2006) 146: 505–512
5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0