what kind of blue bird egg is specaled brown?

Answer 1

The cowbird lays speckled brown eggs...

Picture of one:...http://www.sfu.ca/biology/faculty/williams/ebird/img/cowbird.jpg

Picture of their egg:...http://marcus.whitman.edu/~parkerth/bevi_nest1.jpg

The reason there is just one Cowbird egg amongst another species of bird nests is because Cowbirds lay eggs in the nests of other birds because the other birds will
do all the work of raising the cowbird chicks for them.

I weren't sure if you meant a blue egg that is speckled brown or a bird that is blue that lays speckled brown eggs.

Look at this website for information on Birds eggs..:http://www.beshara.org/chisholme/birds.html

Answer 2

Blue eggs are usually from robins.

Answer 3

robins eggs are pale blue
the blue tit eggs are pale blue with brown speckles
Good Luck!