At least eight different gull species hang out at Malibu Lagoon, and telling them apart isn’t always easy. For starters, they change their colouration every year for the first three or four years, and their summer outfits might differ from their winter ones. But setting aside the juvenile years, I’m going to try to learn how to identify the adults, even if they look very similar to a casual glance. These two, the Western and California gulls, look pretty much the same year round, so I’m starting with them. I’m honing in on the subtle differences between the two, which admittedly can only be seen close up. More pairs to come as I get around to it.