Birdsong field guide
Swamp Sparrow
Melospiza georgiana
A secretive, stocky wetland specialist characterized by a rich rufous crown, gray face, and a preference for dense aquatic cover.
What it sounds like
A slow, rhythmic, liquid trill on a single pitch; the common call is a sharp, metallic 'chink' note.
Reference call, compare with what you heard
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Field notes
- Possesses disproportionately long legs compared to other Melospiza species, an adaptation for foraging in mud and shallow water.
- Undergoes a dramatic seasonal diet shift, transitioning from nearly 90% insects in summer to primarily seeds in winter.
- Highly precise song learners, young males replicate the specific syllable structure of their tutors with exceptional accuracy.
- Primarily a nocturnal migrant, this species is among those most frequently recorded in urban bird-window collision surveys.
- The subspecies found in coastal brackish marshes (M. g. nigrescens) has evolved a larger bill to handle different prey types.
Habitat
Freshwater marshes, bogs, swamps, and wet meadows with thick emergent vegetation like cattails or sedges.
Range
Breeds across central/eastern Canada and the northeastern US; winters in the eastern and southern US and northern Mexico.
Similar & commonly confused birds
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