This hawk had just perched in the late afternoon to survey his hunting grounds for an evening meal. Ridgefield National Wildlife Refuge, Washington USA
It looks like the frog is in some kind of yoga pose but I suspect this is a reaction to being upside down or trying to become too large to eat.
The featherless ankles on this juvenile eagle identify it as a bald eagle rather than a golden eagle which has feathers all the way down the leg.