My husband took these shots of an adult Hooded Crow grooming an adolescent on an opposite roof the other day. They remind me of being a child and trying to stand patient and still while my mother combed my hair and fussed over my clothes. 
Birds in Berlin
Birdwatching in the German metropolis
Oh Yes, mothers do try and groom their offspring. Please forgive all of my grooming mistakes. You now are able to do your own 😉