I had this great video of Avery's infectious giggling that I was going to post in my 4, 5, 6, 7, 8... post, but the file was too big. So, instead, here is a video of her scooching.
She started to move around on her belly around mid-December. She is now up on all fours but hasn't quite figured out the arm-leg movement for crawling. She is doing the wounded soldier crawl, though!