Shorebirds probed for insects in muddy areas left by receding water at the Horicon Marsh. The Dunlin is easy to identify during breeding season by the large black patch on its belly. Flocks of Dunlins spread across the Marsh on the north side of Highway 49.
The Least Sandpiper is the smallest shorebird in the world. Small shorebirds are known as “peeps,” which gives new meaning to the sugary, marshmallow candy with the same name. The Least Sandpiper can be distinguished from the Semipalmated Sandpiper, which has dark legs, and the Pectoral Sandpiper, which has a heavily streaked breast and orange coloring at the base of the bill.
The Semipalmated Plover is the most common Plover seen during migration. This Plover looks similar to a Killdeer, but the Plover has a single black neck band. The Killdeer has two black neck bands. Semipalmated means the toes are webbed for only part of their length.
This Barn Swallow is masquerading as a shorebird by probing in the mud for food. Barn Swallows typically snatch insects from the air during flight. This Swallow was successful choosing an atypical menu.
The Gray Catbird, with its understated beauty, is named for its call. It sounds like a young kitten mewing. It can also “imitate the vocalizations of over 40 bird species, at least one frog species and several sounds produced by machines and electronic devices,” according to the American Museum of Natural History Birds of North America: Eastern Region. Amazingly, it can sing two notes simultaneously. Some of us would be happy to sing one note well.
Shorebirds can be difficult to identify. The Dunlin has a large, square, black patch on its abdomen, as part of its adult breeding plumage, making it easy to recognize. The Black-necked Stilt has striking black and white plumage with thin pink legs. This is prime nesting time at the Horicon Marsh and a wide variety of birds can be seen with their stunning breeding plumage.