Animalia > Chordata > Aves > Passeriformes > Tyrannidae > Empidonax > Empidonax traillii

Empidonax traillii (Willow Flycatcher)

Synonyms: Muscicapa traillii
Language: French; Spanish

Wikipedia Abstract

The willow flycatcher (Empidonax traillii) is a small insect-eating, neotropical migrant bird of the tyrant flycatcher family. There are four subspecies of the willow flycatcher currently recognized, all of which breed in North America (including three subspecies that breed in California). Empidonax flycatchers are almost impossible to tell apart in the field so biologists use their songs to distinguish between them. The binomial commemorates the Scottish zoologist Thomas Stewart Traill.
View Wikipedia Record: Empidonax traillii

Infraspecies

Empidonax traillii adastus
Empidonax traillii brewsteri
Empidonax traillii extimus (Southwestern willow flycatcher)
Empidonax traillii traillii

EDGE Analysis

Uniqueness Scale: Similiar (0) 
1
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
14
 Unique & Vulnerable (100)
ED Score: 4.25684
EDGE Score: 1.65953
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  13.5 grams
Birth Weight [3]  1.8 grams
Breeding Habitat [2]  Temperate eastern forests, Temperate western forests
Wintering Geography [2]  Pacific Lowlands
Wintering Habitat [2]  Tropical dry forests, Tropical evergreen forests
Diet [4]  Carnivore (Invertebrates), Frugivore
Diet - Fruit [4]  10 %
Diet - Invertibrates [4]  90 %
Forages - Mid-High [4]  20 %
Forages - Understory [4]  80 %
Clutch Size [6]  4
Clutches / Year [5]  1
Fledging [1]  14 days
Global Population (2017 est.) [2]  9,400,000
Incubation [5]  13 days
Mating System [3]  Monogamy
Maximum Longevity [5]  11 years
Migration [7]  Intercontinental
Female Maturity [5]  1 year
Male Maturity [5]  1 year

Ecoregions

Protected Areas

+ Click for partial list (100)Full list (154)

Ecosystems

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No
Caribbean Islands Anguilla, Antigua and Barbuda, Aruba, Bahamas, Barbados, Cayman Islands, Cuba, Dominica, Dominican Republic, Haiti, Grenada, Guadeloupe, Jamaica, Martinique, Montserrat, Netherlands Antilles, Puerto Rico, Saint Kitts and Nevis, Saint Lucia, Saint Vincent And The Grenadines, Trinidad and Tobago, Turks And Caicos Islands, Virgin Islands - British, Virgin Islands - U.S. No
Madrean Pine-Oak Woodlands Mexico, United States No
Mesoamerica Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama No

Consumers

Parasitized by 
Molothrus ater (Brown-headed Cowbird)[8]

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.
♦ 3Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 4Hamish 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
♦ 5de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 6Jetz 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
♦ 7Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org
♦ 8Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
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