I never heard of them laying in other nests,

There very good parents, cowbirds are a bigger threat to songbirds than starlings. They ALWAYS lay there eggs in other birds nests, I seen it done a few days ago ... a female cowbird wen't into this tree & climbed into the nest to lay some eggs while the male cowbird just sang on the top of the tree lol.

I would love an albino or pied starling, there's some breeders.

They can indeed make awsome pets. ^ ^''