Golden-crowned Kinglet

Golden-crowned Kinglet (photo Matt Valencic)
The smallest of our winter birds at just 0.2oz (you could mail 5 of them for one stamp!). Can survive down to -40F by lowering its body temperature at night.
Golden-crowned Kinglet (photo Matt Valencic)
The smallest of our winter birds at just 0.2oz (you could mail 5 of them for one stamp!). Can survive down to -40F by lowering its body temperature at night.