||Garrulus glandarius (L.)
||Approximately with the size of Jackdaw.
Body length 30 - 40 cm, wing length 18 - 20 cm, body weight 145 - 185 g.
||Widespread bird breeding from Western
Europe to Far East, China and northern India. It is breeding uniformly all over Estonia.
||The population has remarkably increased in
Estonia up to 30,000 - 50,000 pairs today.
||It prefers various coniferous and
spruce-dominated forests, also can be found in broad-leaved wooded meadows of Western
||A part of Estonian population is
sedentary, the other part is migratory arriving in March or early April. The autumn
migration takes place mostly in September and October.
||Jay is an omnivorous bird. In spring and
in summer it feeds mostly on insects, worms, eggs and nestlings of smaller birds. At the
end of summer it starts feeding also on seeds, berries and acorns.
||The nest is most frequently built into a
hardly noticeable place in a spruce in the height of up to 10 metres. Both parents take
part in building it. The nest is rather flat consisting of twigs outside and softer
material, mosses and grasses inside. The eggs are greyish-green with brownish pattern.
||The hatching time is 16 - 17 days. Both
parents hatch eggs and feed the nestlings afterwards. The young are altricial and they
leave the nest at the age of three weeks. Parents take care of the young until autumn. At
that time they wander around together. Average lifetime is 1.2 - 1.6 years.
|The place in the ecosystem
||As an insectivore Jay eats various pests,
being therefore useful for forestry. Also it helps to spread various plants.
|Endangerment and protection
||Jay is not under protection.