The Harris’s Sparrow is North America’s largest sparrow. It has a chunky body with a barrel-shaped chest that makes its head look a bit small. Males and females have a similar appearance with streaky brown and black plumage, grey or brown cheeks, a white belly, and a pink bill. Breeding adults have a distinctive black bib, face and crown. The Harris's Sparrow's song is a simple whistle of 1 to 3 evenly spaced notes of the same pitch.
Weight: 30 to 45 g (1.1 to 1.6 oz). Length: 17 to 20 cm (6.7 to 7.9 in).