If you’re getting serious into birding, a lot of folks do the lists with the separate app eBird, which lets you make lists of birds you’ve seen on say, a given walk in a specific park. It’s like a digital version of a bird checklist you might find at a wildlife refuge.

(Pro tip, if you have 100 seagulls you don’t want to count individually, you can use X to say you don’t know. Also you can enter a general group like “gull sp.” if you can’t quite identify which kind of seagull they are)