the act of becoming romantically involved with a bird (subjectively attractive woman). This can be in the acute (e.g. one-night-stand, flicking the bean
on the dance floor at an ugly sweater party) or chronic (long term GF) sense.
Ernesto was widely regarded as a smooth operator with the ladies. The guy could get birded at a convent.
Felipe got heavily birded in his first year of college and has been madly in love with his soul-mate ever since