"To catch the birds" means to successfully achieve or obtain something desired or sought after. It can refer to achieving goals, opportunities, or fulfilling aspirations. Full definition
Previously, such a violation could potentially draw criminal charges and discourage private investment in wind farms known for catching birds in their rotors. (sunshinehours.net)
For example, the monkeys in his study were nearly fooled, and many feral cats succeed in catching birds with their so - called «chatter» technique. (petpeoplesplace.com)
The main diet for wild ferrets is probably rodents, although no doubt they'd be happy to catch a bird now and then. (petbusiness.com)