BirdAnalyst
Family · Tyrannidae · Passeriformes

Tyrant Flycatchers Population Trends

31 species tracked, ordered by long-term trend. Steepest declines first.

Tyrant Flycatchers species ranked by population trend.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Gray KingbirdAerial insectivores-95%1969
Least FlycatcherAerial insectivores-53%1968
Scissor-tailed FlycatcherAerial insectivores-51%1969
Eastern KingbirdAerial insectivores-46%1968
Northern Beardless-TyrannuletAerial insectivores-27%1971
Great Crested FlycatcherAerial insectivores-12%1968
Eastern Wood-PeweeAerial insectivores-10%1968
Eastern PhoebeAerial insectivores+1%1968
Acadian FlycatcherAerial insectivores+32%1968
Yellow-bellied FlycatcherAerial insectivores+43%1968
Greater PeweeAerial insectivores+45%1977
Willow FlycatcherAerial insectivores+48%1968
Western KingbirdAerial insectivores+54%1969
Cassin's KingbirdAerial insectivores+83%1970
Alder FlycatcherAerial insectivores+157%1968
Brown-crested FlycatcherAerial insectivores+170%1969
Olive-sided FlycatcherAerial insectivores+186%1968
Vermilion FlycatcherAerial insectivores+244%1969
Dusky-capped FlycatcherAerial insectivores+256%1970
Great KiskadeeAerial insectivores+285%1969
Say's PhoebeAerial insectivores+323%1969
Ash-throated FlycatcherAerial insectivores+327%1969
Black PhoebeAerial insectivores+335%1970
Western Wood-PeweeAerial insectivores+355%1969
Dusky FlycatcherAerial insectivores+757%1970
Hammond's FlycatcherAerial insectivores+840%1970
Couch's KingbirdAerial insectivores13×1969
Gray FlycatcherAerial insectivores17×1970
Sulphur-bellied FlycatcherAerial insectivoresn/an/a
Tropical KingbirdAerial insectivoresn/an/a
Thick-billed KingbirdAerial insectivoresn/an/a