Spot the odd one out.
It's the third picture. That male has a white feather on his chest.
How do I know this is a mother squirrel?
See the nipples in the second photo? She is lactating.
Easy one - which tit?
Coal tit and then blue tit.
Hard one - are these the same robin and if so, who?


I don't know the answers. But neither are Mottled Breast; the one I have been referring to (perhaps wrongly) as Tiny, who has missing feathers under her right eye; or the one with a whole load of missing feathers under his or her throat. Nor, patently, are they Bobbit or Tengu... or indeed Tapdance.
I like how you started with the easier ones (at least for someone with a sharp eye and a sharp camera lens), and ended with the hard/impossible-to-id robins.