When submitting eBird observations at Barr Lake State Park, it is most helpful to start a new checklist for each hotspot in the park. Use the general hotspot when you have a checklist that includes multiple locations or if no other hotspot or personal location is appropriate for your sightings.

Barr Lake State Park offers the nature enthusiast a remarkable opportunity to observe all types of wildlife, including coyote, deer, and such dramatic birds as white pelicans, great blue herons, cormorants, egrets, os​preys and hawks. More than 350 species of migratory and resident birds have been seen the park. Numerous bald eagles winter at Barr Lake and one pair stays to nest and raise its young every year. The southwest side of the lake is home to a bustling rookery with over 200 nests.

Bicyclists of all ages and abilities, nature hikers and horseback riders enjoy the level 8.8-mile multi-use trail that circles the lake, passing by several wildlife viewing stations and the park's wildlife refuge. More than 350 species of birds have been spotted in the park. Numerous bald eagles winter at Barr Lake and one pair stays to nest and raise its young every year. Barr Lake's Nature Center has displays about the park's wildlife and you can have your questions answered by a naturalist.