Never ever thought I'd be happy to hear crowing. My boy's first crow was this morning - cutest thing ever. I wasnt even sure what it was at first, but it was definitely him crowing. About 5 times starting at 5:15. I got so excited I ran out and let them all out early to snuggle the little guy 
This is Sid, he's 3 months old.

This is Sid, he's 3 months old.