Birds Seen Near Thornton, CO

165 bird species have been reported near Thornton, CO in the past 7 days. The Baird's Sandpiper has been sighted most often. Rare or notable reports include a Green Heron and a Brewer's Sparrow.

Recent bird sightings reported near you on eBird, the Cornell Lab of Ornithology's citizen-science database, with the species seen and when.