Males are mostly blue while the females are a dull, bluish-gray with varying hues of blue ... which exhibit sexual dichromatism, male and female blue jays share the same bright colors.

This is a long-tailed jay ... gray below with a contrastingly paler throat and upper breast, and a variable bluish band on the chest. Juvenile: much grayer overall, showing very little blue ...

Singing from high in the treetops or along telephone lines, males are a deep vibrant blue all over in the summer and have shiny silver-gray bills ... male and female blue jays share the same ...