As the temperature creeps up in the 90's and 100's, the water disappears across the refuges. Staff are busy managing the habitats preparing for the next season. Herons, egrets, grebes, and some ducks remain to nest in the premanent ponds. Orioles, swallows, and flycatchers are found amongst the trees. Tricolored blackbirds search out bulrush and cattail territories at Delevan NWR. Resident deer, blackbirds, jackrabbits, otter and muskrat can be observed.