Faye

Hello everyone I am new to the community and was hoping someone could help me. I have a pair who have two babies that are now two weeks old. We have noticed tonight that the male has become aggressive toward the female and will not let her in the nest box. He is in there and seems to have decided he wants to care for the chicks himself! This is our first time breeding and everything has gone smoothly up until now, the chicks are healthy and growing well. This has been the first concern we have had and I've been doing some reading but can't find any information to help me with this one! Hopefully someone can shed some light for me! Thanks in advance, Faye