Eurasian Tree Sparrow
Passer montanus
ETSP
Order: Passeriformes | Family: Passeridae (Old World Sparrows)
Bird Description
Uncommon and local, introduced around St Louis, MO. A smaller, neater version of breeding ♂ HOSP. Nests in tree holes. Both sexes have all-brown cap, dark cheek patches, and full white collar. Juv: dull version of adult.