Incoming !

BOGOF - Blip one, get one free.
I was following the chaffinch as it flew up to the feeder, knowing that he would be 13/16 for my May challenge.
I hadn't spotted the goldfinch's spectacular photo-bomb, and surprisingly, I have yet to blip a goldie this month. Does that make 14, or should there be a limit of one per day?
Hmmmm - I didn't considered this scenario on May 1st
:o)