Least Storm-Petrel vs Bulwer's Petrel

The Least Storm-Petrel and Bulwer's Petrel are both small seabirds, but they can be distinguished by their size and behavior. Least Storm-Petrel is notably smaller and often seen fluttering low over the water, while Bulwer's Petrel is larger with a more graceful, gliding flight.

Size: Least Storm-Petrel is much smaller. Flight style: Look for the fluttering flight of the Least Storm-Petrel compared to the gliding of Bulwer's Petrel.

Least Storm-Petrel is significantly smaller than Bulwer's Petrel.

Least Storm-Petrel often flutters low over the water, whereas Bulwer's Petrel is more likely to be seen gliding gracefully.