Erect and proud juvenile blackbird

This bird, (help on identification from Black Tulip) has been visiting my bird feeder and perching like this most of the week. There is no food and I have not been able to find the energy to take a pic. I did take a few today and noticed something interesting. It appears to be to have only a single leg? Is this a trick of how its perch or do you agree. I took around twenty and they all appear this way. See extra too.

It was good to get a decent picture in to end the week. Still slowly inching better. I have until Saturday to feel okay as I have a planned trip to Scarborough booked from Sunday. I think the break would work well as recuperation but need to feel strong enough first. But I am staying optimistic.