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Lake Merritt is a large body of salt water that lies just south of downtown Oakland, California.
Originally, the 'lake' was a tidal estuary of San Francisco Bay. It has always attracted migratory birds and in order to protect the birds from duck hunters, in 1869, the body of water was declared a National wildlife refuge, making it the first such refuge in North America. Children's Fairyland is on the shore of lake.
The lake features a healthy year-round population of birds, it does see seasonal fluctuations in the types of birds who call the lake home.
All year round, the lake is home to moderate Canada Goose, Black-crowned Night Heron, Great Egret, Cormorant, and Gull populations. There are also small Mallard Duck and Pelican populations.
From November through March the lake plays host to a very large population of Greater Scaup and Lesser Scaup, who spend most of their time floating on water mostly just sleeping.
From June until the end of September, the lake's Canada Goose population increases significanty; they become nearly ubiquitous around the perimeter of the lake. In late summer and early fall a moderate pelican population also arrives.