Talk:Eggstravaganza/@comment-28048743-20171031055144/@comment-32994711-20180221214700

It's randomized. There is a SLIGHT possibility that you might have a higher chance of getting a crow if you make the egg's first color black, but don't quote me on that. The first time I did this my egg was primarily colored black and secondarily colored purple, and I got a crow.

It's really all random, my best guess would be to keep buying eggs until you get a crow.