Compare
Polioptila caerulea
Common Name: Blue-gray Gnatcatcher
Catalogue Number: 3112
Institution: University of Saskatchewan
![](/f/g42kj2yt43fk7igdudqu8pux4v5y6f/Polioptila-caerulea-Individual-1-550x414.jpg)
![](/f/3so2dt4sa4qhx0exsao7kdks16z9yl/Polioptila-caerulea-Clutch-1-550x408.jpg)
Common Name: Blue-gray Gnatcatcher
Catalogue Number: 3112
Institution: University of Saskatchewan