News Earth For coots, hatching order is crucial ID When birds sneak eggs into others' nest, mom and dad can learn to find their own Share this:FacebookTwitterPocketRedditPrintEmail By Rachel Ehrenberg December 16, 2009 at 5:27 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe