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A female blue jay looks like a male blue jay, although she is slightly smaller in size with a white belly and black wing markings. Both sexes have tall head crests that are raised when they are excited.

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9y ago
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12y ago

It's really difficult to. They actually look exactly alike. One thing to help is by looking at the size. A female blue jay is sometimes actually smaller. Other than that, sometimes, the marking pattern of black on a blue jay might differ out its gender. Such as a small, curlier black lining can refer to a female blue jay. A male has a darker, deeper, and thicker type of lining.

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10y ago

Male and female blue jays look so much alike (sexually monomorphic), even the experts sometimes have a hard time telling them apart, except during the mating season. This occurs in mid-March to as late as early July, and the female develops a pale "brood patch" on her abdomen. Its lack of feathers and profusion of small blood vessels mean this area remains warm for incubating the eggs and keeping the chicks comfortable.

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14y ago

I don't think there's any difference, besides the younger ones being darker than the adults, I think.

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15y ago

I believe the males are brighter, and the females are more gray in color.

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13y ago

i found out in a book that all males have blue tongues when they are born but as they get older they grow out of having a blue tongue and there tongue gets light pink

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Q: How can you tell if blue jay is male or female?
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