Little Blue Heron (Egretta caerulea)
is a casual vagrant to AZ. This bird is in adult plumage but still shows traces of the white feathers of an immature. It was discovered at the Water Ranch in Gilbert, AZ, by Brendon Grice on May 15, 2009, and was still being sen on May 18. It fed with mixed Greater and Snowy Egrets while present.