[pygy_]

Do birds spend time observing the nest of their peers? AFAIK the only nests they care about are their own (though I'm definitely not an ornithologist, I'm mostly ignorant about them in general).

But that's the beauty of Darwinism, whether the information is stored in the genes or in their culture (memetically) doesn't matter, the selection/amplification process is the same.

[erikpukinskis]

Sure. Birds die, other birds take over nest.