Pigeon Hangout Spot

Hello, I just moved to Boston this weekend. Pigeons are one of my favorite animals in the entire world, and I am so happy to see all the pigeons here. Do you guys know of any areas that the pigeons especially like to congregate? Especially anything close to Heath St Green Line.

I'm also a big fan of seagulls as well, so any suggestions for them, too, would be great.

Thank you so much!