The blue jay measures 22–30 cm (9–12 in) from bill to tail. source
The blue jay measures 22–30 cm (9–12 in) from bill to tail.
weighs blue jay 70–100 g (2.5–3.5 oz), with a wingspan of 34–43 cm (13–17 in). source
weighs blue jay 70–100 g (2.5–3.5 oz), with a wingspan of 34–43 cm (13–17 in).
Blue jay from Connecticut averaged 92.4 g (3.26 oz) in mass. source
Blue jay from Connecticut averaged 92.4 g (3.26 oz) in mass.
Blue jay from southern Florida averaged 73.7 g (2.60 oz). source
Blue jay from southern Florida averaged 73.7 g (2.60 oz).
There is a pronounced crest on the blue jay's head , a crown of feathers, which may be raised or lowered according to the bird's mood. source
There is a pronounced crest on the blue jay's head , a crown of feathers, which may be raised or lowered according to the bird's mood.
When blue jay excited or aggressive, the crest will be fully raised. source
When blue jay excited or aggressive, the crest will be fully raised.
When blue jay frightened, the crest bristles outwards, brushlike. source
When blue jay frightened, the crest bristles outwards, brushlike.
The blue jay is a noisy, bold and aggressive passerine. source
The blue jay is a noisy, bold and aggressive passerine.
Blue jay is a moderately slow flier (roughly 32–40 km/h (20–25 mph)) when unprovoked. source
Blue jay is a moderately slow flier (roughly 32–40 km/h (20–25 mph)) when unprovoked.
Blue jay flies with body and tail held level, with slow wing beats. Due to its slow flying speeds, source
Blue jay flies with body and tail held level, with slow wing beats. Due to its slow flying speeds,
this species makes Blue jay easy prey for hawks and owls when flying in open areas. source
this species makes Blue jay easy prey for hawks and owls when flying in open areas.
Blue jays have strong black bills which they use for cracking nuts, usually while holding them with their feet, and for eating corn, grains and seeds. source
Blue jays have strong black bills which they use for cracking nuts, usually while holding them with their feet, and for eating corn, grains and seeds.
Blue jays's food is sought both on the ground and in trees and includes virtually all known types of plant and animal sources. source
Blue jays's food is sought both on the ground and in trees and includes virtually all known types of plant and animal sources.
Blue jays typically form monogamous pair bonds for life. source
Blue jays typically form monogamous pair bonds for life.
There are usually between 3 and 6 (averaging 4 or 5) Blue jays's eggs laid and incubated over 16–18 days. source
There are usually between 3 and 6 (averaging 4 or 5) Blue jays's eggs laid and incubated over 16–18 days.
