Came across this article today and thought it was interesting and usable for the community's yukkuri-science/logic/fan-fic.
http://www.sciencemag.org/news/2016/08/video-zebra-finch-call-prepares-their-eggs-climate-change
TL;DR: Zebra finches sing a special song to their eggs at the end of the incubation period if the environment is above a certain temperature. The eggs that hear the song will bear finches with a smaller body size than normal that are able to withstand heat better than normal finches.