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Birders follow different patterns of bird migration and their local activities and travel accordingly. It illustrates the bird richness per country. Shown as a list, it looks like this: Less than 200 bird species: Antarctica; oceanic islands. Focus on the wider triple border area – the birding top of the world.).
While Colombia may have almost 2000 bird species, it is a huge country with, still, complicated long-distance travel logistics. On the other hand, small countries with relatively long bird lists offer higher species densities per square mile. The Species per Square Mile Approach. Why 99,999? And why 1000?
This portal has compared data on the percentage of a total global number of species of birds, amphibians, mammals, reptiles, fishes and vascular plants per unit of area, creating a biodiversity index. Best timing here is the dry season, June to September, when most birds are breeding (3). Sources: 1 Rwanda, African Bird Club.
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