Mad skills

Fiona's been developing some mad skills over the past week or so. She's started squealing and shrieking throughout the day.  In the morning it's more of a babble type squeals and in the evening it gets more high pitched.  She also does it if she gets excited and sometimes just when she's happy playing with her toys.  Sometimes it sounds like she's making some talking sounds, but mostly just squealing.

Fiona has also started to sit herself up from being on her knees.  We've just noticed this in the past day or two.  So now she can go from back to belly to knees to sitting.  She can also go sitting to belly to back.  And a couple of other combinations.