First ever recorded Bluebirds Twins!

Very interesting article about the first ever finding of bluebird twins, which is a very rare occurrence.

http://blog.allaboutbirds.org/2014/03/25/first-ever-bluebird-twins-found-via-project-nestwatch-plus-more-opportunities-to-discover/?utm_source=Cornell+Lab+eNews&utm_campaign=7dd922b88f-Cornell_Lab_eNews_2014_4_08&utm_medium=email&utm_term=0_47588b5758-7dd922b88f-303689041