This Forster’s Tern wasn’t trying to take over this Canada Goose nest when I photographed it but it might look that way in this image. The man-made nest is located at Farmington Bay WMA in Davis County, Utah and this is what it looked like in June of 2012.
Forster’s Terns do breed in Utah but they wouldn’t select an elevated nest instead they use unlined scrapes in mud or sand, rafts of floating vegetation or at times on the top of muskrat lodges. The Forster’s Tern in breeding plumage shown in the image above was just taking a break between feeding and hunting and the nest was just a convenient rest stop.
I’ve photographed other bird species in or on this same nest including Great Blue Herons and Belted Kingfishers.
Life is good.