Black birds singing in the dead of night

I woke up in the middle of the night with Paul McCartney's blackbird song in my head. It stayed with me for a couple of days and I thought this might be a good time to make the birds I have been meaning to for years.
Coincidentally, clothpaperstudio is having a challenge to celebrate our 7th anniversary, we are to make something with 7. 
This why there are 7 black and white birds in my little tableau.

I found the pattern here