The western meadowlark (Sturnella neglecta) is a medium-sized icterid bird, about 8.5 in (22 cm) in length. It nests on the ground in open grasslands across western and central North America. It feeds mostly on insects, but will also feed on seeds and berries. The western meadowlark has distinctive calls described as watery or flute-like, which distinguish it from the closely related eastern meadowlark. The meadowlark is about robin sized, but chunkier and shorter tailed. The COSA is located in an area that western meadowlarks live full time in, but they have only been spotted in the COSA in April, May, and November