Two very young Barn Swallows on a farm fence. They were still being fed by adults and were huddling together.
1/640, ISO640, f5.6, 400mm
For me, this photo session was evidence that I should save for a FF camera. Most of the action shots ( not posted )were a bit blurry as I had to shoot slow and wide open. Crops from my 60D get grainy after ISO640.