|
The British avifauna consists of the birds which have occurred in Great Britain. This article is a general discussion of the topic. A full species list can be found at List of birds of Great Britain. In general the avifauna of Britain is, of course, similar to that of Europe, consisting largely of Palaearctic species. As an island, it has fewer breeding species than continental Europe, with some species, like crested lark, breeding as close as northern France, yet unable to colonise Britain. The mild winters mean that many species that cannot cope with harsher conditions can winter in Britain, and also that there is a large influx of wintering birds from the continent or beyond. There are about 250 species regularly recorded in Great Britain, and another 300 that occur with varying degrees of rarity. ==Resident species== About 120 species occur in the UK all year round. Some of these are permanent populations of sedentary non-migrants such as tawny owl or red grouse, whereas others have their numbers augmented by winter visitors from the continent (for example common starling), or depleted by winter hard-weather movements to Ireland or southern Europe (for example European goldfinch). Several species, particularly waders such as ringed plover and dunlin, both breed and winter in Britain, whereas these areas are separate for most other populations of those birds. The black-tailed godwit is an interesting case. Although it is present all year, the breeding population actually migrates south, and is replaced by wintering birds of the Icelandic race. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「British avifauna」の詳細全文を読む スポンサード リンク
|