# Olive-sided Flycatcher

*Contopus cooperi*

This bird's distinctive three-note whistle is famously mnemonically described as sounding like 'Quick, three beers!'

- **Taxonomy:** Animalia › Chordata › Aves › Passeriformes › Tyrannidae › Contopus
- **IUCN Red List status:** Near Threatened
- **Population trend:** decreasing
- **Biome:** forest
- **Habitat:** Coniferous forests, particularly near edges, clearings, and burned areas with standing snags.
- **Diet:** Strictly insectivorous, specializing in flying insects like bees, wasps, and beetles.
- **Range:** North America, Central America, South America
- **Size:** 18-20 cm in length, with a wingspan of 31-35 cm
- **Lifespan:** Approximately 7 years
- **Active:** diurnal
- **Threats:** Habitat loss on breeding and wintering grounds, fire suppression, and decline in insect biomass.
- **Safe to approach?:** Harmless. These birds are best observed from a distance using binoculars as they perch on the highest tips of dead trees. Avoid approaching nesting sites during the spring and summer to prevent abandonment of eggs or chicks. If a bird is found injured, contact a local wildlife rehabilitator.

## About

The olive-sided flycatcher ( Contopus cooperi ) is a passerine bird. It is a medium-sized tyrant flycatcher.

## Sources

- Plate: https://gaia-dex.com/species/5771272b-1ce1-4c56-b153-8ff065c5de54
- iNaturalist: https://www.inaturalist.org/taxa/16110
- Wikipedia: https://en.wikipedia.org/wiki/Contopus cooperi
- Conservation status: IUCN Red List category, as recorded by Gaia-Dex
- Photo: https://inaturalist-open-data.s3.amazonaws.com/photos/113567362/medium.jpeg (Todd Boland, CC-BY, via iNaturalist)

Habitat, diet, size and similar notes are AI-written summaries; check them against the linked sources before relying on them.