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Overview
San Blas jay

San Blas jay

Wikipedia

The San Blas jay is a species of bird in the family Corvidae. It is endemic to Mexico where its natural habitat is subtropical or tropical dry forests; it is a common species and has been rated as "least concern" by the IUCN.

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Distribution

Region

Pacific slope of western Mexico

Typical Environment

Occurs from lowland and foothill tropical dry forests, thorn-scrub, and semi-open woodlands along the Pacific drainage of western Mexico. Frequently uses edges, second-growth thickets, riparian corridors, plantations, and rural mosaics. Common around disturbed habitats near forest patches, where it exploits a variety of food resources. Often stays in the midstory and canopy but will descend to forage at lower levels when food is available.

Altitude Range

0–1000 m

Climate Zone

Tropical

Characteristics

Size27–32 cm
Wing Span35–40 cm
Male Weight0.11 kg
Female Weight0.1 kg
Life Expectancy12 years

Ease of Keeping

Beginner friendly: 2/5

Useful to know

The San Blas jay is a social corvid endemic to Mexico’s Pacific slope, often moving in noisy family parties through tropical dry forest. Like many Cyanocorax jays, it practices cooperative breeding, with helpers assisting a dominant pair. It adapts well to edge habitats and secondary growth, which helps explain its stable conservation status. Its bold black hood and vivid blue body make it one of the more striking jays in the region.

Gallery

Bird photo
Bird photo
Bird photo

Behaviour

Temperament

social and active

Flight Pattern

short rapid wingbeats with brief glides

Social Behavior

Usually travels in cohesive family groups that maintain contact with frequent calls. Cooperative breeding is common, with helpers assisting in territory defense and feeding nestlings. Nests are typically placed in trees or dense shrubs, and pairs are strongly territorial during the breeding season.

Migratory Pattern

Resident

Song Description

Vocal repertoire includes harsh jay-like scolds, rattles, and buzzy notes interspersed with clear whistles. Groups call frequently while moving, and loud alarm calls are given when predators are spotted.

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