Yes, it's another Heerman's gull! I took the photo despite a bunch of crud and rocks blocking the lower half of the bird, thinking that there might be some potential if I cropped the undesirables out. They're probably nothing more than parking lot birds for people who live in San Diego, but for me the subtle grays and scarlet bills are a nice change from the typical Ring-bills out east.
The only disadvantage to square cropping a 7D mkII image is the final size; it measures about 10 inches across, leaving you with a more limited upper range for printing big.
7D mkII
100-400 IS II zoom at 400mm
1/800 @ f/6.3, ISO 800
DPP/Photoshop
Thanks for looking,
Jake