My buddy threw a piece of bread out the window while we were having lunch on Lake Ontario.
Thank God we were in the car...There were 100's of them in 10 seconds!!
He's an employee. Never took him to the lake for lunch again!!
"Rare" is relative, of course.
Trust me: if a Heermann's gull showed up at Lake Ontario, you'd have 100,000+ birders stampede to Lake Ontario within 12 hours to see it.
Birders are weird that way.
(Yeah, I'm a birder...)