The alder flycatcher (Empidonax alnorum) is a small insect-eating bird of the tyrant flycatcher family. The genus name Empidonax is from Ancient Greek empis, "gnat", and anax, "master". The specific alnorum is Latin and means "of the alders".

Adults have olive-brown upperparts, browner on the wings and tail, with whitish underparts; they have a white eye ring, white wing bars, a small bill and a short tail. The breast is washed with olive-grey. The upper part of the bill is grey; the lower part is orangish. At one time, this bird was included with the very similar willow flycatcher in a single species, "Traill's flycatcher".

Their breeding habitat is deciduous thickets, often alders or willows, near water across Canada, Alaska and the northeastern United States. They make a cup nest low in a vertical fork in a shrub.

These birds migrate to South America, usually selecting winter habitat near water.

They wait on a perch near the top of a shrub and fly out to catch insects in flight, also sometimes picking insects from foliage while hovering. They may eat some berries and seeds.

This bird's song is a wheezed ree-BEE-a. The call is a quick preet.
Alder Flycatcher
Date Location Count
2019-10-20 16:30St. Andrews SP--Gator Lake1
2019-10-20 09:05Aripeka Sandhills Preserve1
2019-10-12 07:45Kendall Indian Hammocks Park1
2019-10-18 08:30Southern Glades WEA--The Annex1
2019-10-08 12:00Quintana Neotropical Bird Sanctuary (UTC 121)1
2019-10-19 08:11Green Hill Cemetry, Jim Hogg Co.1
2019-10-17 06:25RNP Tres Lagartos1
2019-10-19 10:28Tayasal1
2019-10-10 11:00Playa del Pueblo4
2019-10-09 12:36IMAP1
2019-10-12 06:15Finca El Amate1
2019-10-10 15:47Selva Verde Lodge1
2019-10-14 09:08Lakeside School catfish farm1
2019-10-10 07:28Camino a la Reserva Alberto Manuel Brenes2
2019-10-09 07:15Universidad de Costa Rica--Campus Rodrigo Facio1
2019-10-12 08:27Cerro Ancón2
2019-10-10 09:20Amador Country Inn grounds1
2019-10-19 17:30PN Altos de Camapana--Sendero Podocarpus2
2019-10-11 08:00Camino de la Divisoria Continental1
2019-10-19 14:05RNA Paujil (Dept. Boyaca)1
2019-10-16 09:48Parque La Florida2
2019-10-16 10:25Rio Napo--Vecindad ExplorNapo1
2019-10-19 16:09Laguna Ricuricocha1
2019-10-19 05:30Estación Biológica Villa Carmen1
2019-10-19 05:20San Miguelito Jaguar Conservation Ranch1