Ross’s Gull – MEGA Rarity (but not at Montrose)

Ross's Gull

Ross’s Gull at Chicago’s Park 566 (click to see the larger version)

Few birds spark feelings of ecstacy the way Ross’s Gull does, so when one showed up at Park 566 on the south side of Chicago on March 11, 2023, it generated a lot of excitement in the birding community. Hordes of eager birders descended on Park 566 and Rainbow Beach to see what may be the rarity of the decade in Chicago. The Ross’s obliged and put on a show worthy of its status as one of the most sought after of North American birds. This is the fourth record of Ross’s Gull for Illinois, and the first record of an immature for the state. Many excellent photos are at the Park 566 eBird Hotspot.

Ross’s Gulls at Montrose Point

Montrose has two confirmed Ross’s Gull sightings, the first from November 1978 and the second from March 2011. The 1978 record is the same bird first seen at Gillson Park along Lake Michigan in Wilmette, Illinois. This individual made its way south to Chicago, where it was observed at North Avenue Beach and again at Montrose. The 2011 record is of a well-photographed adult sitting on the fishing pier.