Ronaldo

Hi

Same time as previous post (Tokyo area, Dec 2009). Is it a Japanese Sparrowhawk?

Thanks again

kmike

Looks good for Japanese to me

Broad-based , but pointed wings and shorter tail

Cheers
Mike

brendank

The first photo shows six fingers and seems to show a rather pronounced supercilium. I vote for Eurasian Sparrowhawk.

lpaul

Agree, juv male Northern

Ronaldo

Seemed rather small for Eurasian from previous experience, or is there strong variability in size depending on subspecies?

ajohn

Ther may be some variability according to subspecies, but probably more difference related to sex. Male raptors are usually much smaller than females. Compared to the crow, I don't think this bird is as small as Japanese - I agree with Eurasian.

Ronaldo

Thanks John. That's why I posted the pict with the crow, as reference...