A Brant feeding on seaweed.

It looks younger than the individual I saw in Chiba Prefecture last year — could it be a juvenile?

The plumage condition doesn't look like an adult either. I'm not sure how many years it takes for a Brant to acquire adult plumage, but the white bars on the median and greater coverts — a juvenile plumage feature — look fairly worn.

Even when anglers and others approach quite close, it shows little sign of fleeing.

I don't know how long it will stay, but I'd like to check in on it from time to time.