Blue Jay eggs are blue or light brown with brown speckles. These eggs measure 1 to 1.3 inches in length and have an incubation period of about 18 days.
Blue Jays, common in both urban areas and forest edges, build nests 10 to 25 feet above ground in crooks or thick branches of decidious or coniferous trees. Male and female birds participate in nest building, with males predominately gathering the nest-building materials while females build the actual nests. Once hatched, baby Blue Jays are initially blind and featherless. They remain in the nest for 17 to 21 days before fledging.