I was excited to receive an email from Cornell this morning announcing a new online tool called Merlin Photo ID. This tool, similar to Bird Snap, uses “computer vision technology” to identify birds online from photos that you upload to the software.
Gulls can be confusing! Here are a few tricks to help tell some of the more common gulls apart.
This gull guide is for adult birds only. Gulls get even more tricky than depicted here, due to the fact that juvenile gulls are completely different colors, usually brown with a black bill. Juvenile identification will take more practice, but start with learning the differences between adult gulls, then focus on the young ones. These are the four main gulls I’ve seen in Southern California: