Little Sparrowhawk? Tarangire National Park (1 Viewer)

Hi everyone, this small raptor was seen in Tarangire National Park last month. My instinct is that it is a Little Sparrowhawk, but I could well be wrong, it is not a raptor I am at all familiar with. I feel it could be immature, as the chest marking haven't come through fully yet..? Sorry the picture aren't that sharp, it was at a fair distance. This was taken at 400mm on my sigma lens.
Thanks in advance,
Eugene.

looks perfect for juvenile Little Sparrowhawk

Thanks Tom, good to get a second confirmation on that.

Hi all,
Eugene, perhaps your field-guide will confirm the less dense underpart patterning, as Little Sparrowhawk?