Extinct Birds

Haven't had much time recently to note recent news, so I'm playing catch-up here.

First, a new biological modeling system is being tested to determine whether it is economically feasible to try and save a species after it hasn't been seen in a while. Recent test subjects include the ivorybill and the dodo. (News source.)

California condors have made a nest in Pinnacles National Monument for the first time in 100 years. (News source.)

Scientists have extracted DNA from the eggshells of several extinct birds (moas, elephant birds, etc.). (Abstract)