A song sparrow (Melospiza melodia) feasts on an insect along a tidal marsh in Grays Harbor, Washington. Song sparrows are found throughout North America and are about 5 to 7 inches tall (12 to 17 cm) with a wingspan of 7 to 9 inches (18 to 24 cm). The song sparrow uses songs to defend its territory and attract mates. Laboratory research shows that females prefer males that sing more complicated songs.
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