This is also true of North America who shares some characteristics with them. We also have year-round breeding sites in the UK as they are relatively protected sites compared to much of Eastern Europe which can suffer from extremely harsh winters and blisteringly hot summers. The UK is quite a unique little set of little islands due to its location and comparatively mild climate.
But what bird is it, and why does it do it? Seasons in the UK
However, there is one bird in the USA that we know does hibernate. Therefore, there is no need for wild birds to have developed a survival strategy that includes hibernation. With warmer weather comes a more generous supply of insects, riper berries, and generally better wild bird conditions. The primary reason birds do not hibernate is that they can simply fly to another country where the conditions may be more favourable. Although many other animals are known to take this approach, we do not hear about wild birds hibernating, but why? Several animals have evolved to their environment so that when the weather is cold, and food is scarce, they can enter a state that we refer to as hibernation. But the idea of hibernation to animals is more a necessity to survive than to get comfortable and have a nice long sleep. The idea of hibernation to humans usually sums up the idea of going to bed early in winter and not being in any rush to get out.
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