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Bird name:

Pacific-slope Flycatcher

Empidonax difficilis

Order

PASSERIFORMES

Family

Flycatchers (Tyrannidae)

Code 4

PSFL

Code 6

EMPDIF

ITIS

178348

Breeding Location:

Forest edge

Breeding Type:

Monogamous

Breeding Population:

Widespread

Egg Color:

White with brown blotches near large end

Number of Eggs:

3 - 5

Incubation Days:

14 - 15

Egg Incubator:

Female

Nest Material:

Made of plant materials including moss, grass, roots, bark, lichens, and leaves.

Migration:

Migratory

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General

Pacific-slope Flycatcher: Small flycatcher with olive-brown upperparts, yellow throat and belly, and olive-gray breast. Eye-ring is white and elongated. Wings are dark with two pale bars. Bill is long with dark upper mandible and bright yellow lower mandible. Sexes are similar.

Range and Habitat

Pacific-slope Flycatcher: Breeds from Alaska south along the coast to Baja California. Spends winters south of the U.S.-Mexico border. Preferred habitats include moist, shaded coniferous or mixed forests.

Breeding and Nesting

Pacific-slope Flycatcher: Three to five white eggs with brown blotches near large end are laid in a moss-lined cup nest made of small twigs and rootlets, usually built against a tree trunk where the bark has split, in roots of a wind-felled tree, in a bank, or under the eave of a forest cabin. Incubation ranges from 14 to 15 days and is carried out by the female.

Foraging and Feeding

Pacific-slope Flycatcher: Hawks flying insects or gleans them from foliage; also eats berries and seeds.

Readily Eats

Meal Worms

Vocalization

Pacific-slope Flycatcher: Song is a rising "pseet-ptsick-seet." First part alone is often used as a call, or is repeated on a drawn-out, almost sibilant high pitch; second part is rapid and louder.

Similar Species

Pacific-slope Flycatcher: Cordilleran Flycatcher has a two-syllable call (as opposed to an up-slurred single note). Yellow-bellied Flycatcher has a shorter tail and stronger green tones.

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Bird Call Credits: The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology. Martyn Stewart, http://www.naturesound.org, Redmond, Washington USA. The reuse or copying of bird calls in this database is strictly forbidden.

Upperparts

Back, rump, hindneck, wings, and crown.

Belly

The ventral part of the bird, or the area between the flanks on each side and the crissum and breast. Flight muscles are located between the belly and the breast.

Breast

The upper front part of a bird.

Lower mandible

The lower part of the bill.

Upper mandible

The upper part of the bill.

4 and 6 letter alpha codes

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.

Field Guide to Birds of North America