It must take a hell of a lot to survive in the wild. I guess they need all the help they can get, we probably dont understand a fraction of a percentage of how they interact with their surroundings.
Pretty cool.
I sometimes watch English sparrows outside my windows. I might be twenty below and the wind blowing forty MPH. That little bugger is puffed out, sitting on a branch. No reasonable explanation as to why he might live to see tomorrow. But, sometimes he does. Stuff like that blows me away.