5 months old today! It has been such a short time but so much has happened. He is doing wonderful. He is still sleeping throught he night from about 7pm to about 7am, he almost never wakes up crying any more. In the morning I hear him in his room squealing and babbling to himself. Which is great, I have time to get dressed and use the bathroom and he is usually in a better mood overall when he doesn't cry first thing in the morning. He fits in his 3 - 6 month clothes and is starting to fit into some of his 6 - 9 month clothes. He has been eating rice cereal in the morning for one month now and both in the morning and evening for two weeks. On Friday we got him some sweet potatoes and he loves them. So now he is eating rice cereal mixed with a little sweet potato in the morning and all sweet potato at night. He is still eating between 25 and 35 ounces of formula per day as well, he has started eating a little less though since he started solids. Today we sat out on the balcony and I peeled a banana and held it for him. He loved it gummed it and licked it and just generally had a wonderful time with it. It also made quite a mess but, the messier the better, right? He pushes himself around with his arms when on his tummy and scoots backward a little bit but seems to become frustrated with that pretty fast. He will reach of things that are in front of him but he still only moves backward. His little ribs are ticklish and will squeal and laugh when I tickle him. He is very aware of things around him now. He has started crying when I take things away from him. Before I would just change toys at my will but now if I move something he is still interested in he will let me know. Rosco and Chance are still getting along well, Chance runs into him with his walker now but Rosco is a good dog and just goes to lay down somewhere Chance can't reach him. Chance can now put 'mmmmm' and 'aaaaa' together all the time so he wonders around saying 'mama' all the time even though he has no idea what it means. he also says 'baba' a little bit along with all his other random sounds. When it comes to this five month list he does all of these things and has for some time. He drops toys from his chair and watches to see what happens. His little tooth is still only sticking through a little bit, it doesn't seem to bother him much but it is sure taking a long time.
By the end of month five a baby typically:
Pays attention to small objects
Experiments with the concept of cause and effect
Can see across the room
Begins to use hands in a raking fashion to bring toys near
Begins teething process
I copied the six month list too because he is also doing most of these things too. He still needs a little more support to sit than I think they mean and I haven't tried giving him a cup yet so I don't know about that one but all the others he does. He rolls from front to back and back to front all the time and fast like lightning, he also rolls both directions. When I put him down for a nap if he isn't really tired he immediately flips over to his tummy like he had been planning and thinking about doing it from the moment I said it was nap time, he's quick.

By the end of month six a baby typically:
Keeps head level when pulled to sitting position
Makes some vowel-consonant sounds
Sits by self with minimal support
Opens mouth for spoon
Reaches for and grabs objects
Rolls over and back
Drinks from a cup with help
Can hold bottle
Copies some facial expressions
Makes two-syllable sounds

He also puts his toes in his mouth every opportunity he gets. Between him putting his toes in his mouth and his little wiggle butt, diaper changes have become quite good fun.