I think it is Birk Fell? We were on there last autumn. I will check once I'm at home
At home, it isn't Birk Fell unless the cairn has diminished lol. I will have another look in a bit
I think it (photo 3) is from a cairn on Steel Knotts and the fell is Bonscale Pike on the right of the shot, it is Ullswater. I have no idea what Photo 2 is though! I will have another look