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A green jay with a yellow belly and blue-and-black head perched on a branch.
Photo: Chuck Homler, CC BY-SA 4.0, via Wikimedia Commons

Green Jay

Cyanocorax yncas

A bright green, yellow, blue and black jay from southern Texas to South America that uses sticks as tools to dig out insects.

🐦 Songbirds
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About the Green Jay

Green jays are about the size of blue jays. They live from southern Texas to Honduras and from northern Venezuela to Bolivia, in woodlands, citrus groves, brush and rainforests. They eat fruit, insects, seeds, spiders, eggs, chicks of other birds, small rodents and lizards. Like many birds, they use tools to pull insects from tree bark.[1]

Quick facts

Scientific name
Cyanocorax yncas[1]
Lifespan
10 to 11 years.[1]
Diet
Omnivore. Fruit, insects, seeds, spiders, eggs, small rodents and lizards.[1]
Habitat
Woodlands, citrus groves and brush in Texas; rainforests and mountain forests farther south.[1]
Where it lives
Southern Texas to Honduras, and northern Venezuela to Bolivia.[1]
Group life
Northern birds are solitary; southern birds live in small family flocks.[1]
Babies
3 to 5 pale green eggs, incubated 17 to 18 days.[1]
Conservation status
Least Concern (IUCN Red List, assessed 2016).[2]

Fun facts

  • Green jays use sticks as tools to dig insects out of bark.[1]
  • South American green jays are sometimes called Inca jays.[1]
  • Older siblings help feed new chicks.[1]

Vocabulary

tool use
When an animal uses an object to help it do a job.
cooperative breeding
When helpers, often older siblings, help raise young that aren't their own.
population
All the animals of one kind living in an area.
omnivore
An animal that eats both plants and other animals.
least concern
A conservation label meaning a species is widespread and not at risk of dying out soon.

See it in person

Sources

  1. [1] San Francisco Zoo & Gardens. “Green Jay.” https://www.sfzoo.org/green-jay/ (accessed 2026-10-02)
  2. [2] IUCN Red List of Threatened Species. “Cyanocorax yncas (Green Jay).” https://www.iucnredlist.org/species/22705738/118810850 (accessed 2026-10-02)

Facts last checked 2026-10-02.

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