Tree Swallow, adult, CF (carrying food), Little Turtle Flowage, Iron Co., 16 June 2015
Tree Swallow, immature, NY (nest with young), Horicon Marsh NWR, Dodge Co., 22 June 2014
Tree Swallow, adult, ON (occupied nest), Necedah NWR, Juneau Co., 26 May 2015
Tree Swallow, adults, N (visiting probable nest site), Horicon Marsh, Dodge Co., 10 May 2015