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12 countries with the greatest bird species density

10,000 Birds

The mongabay.com portal has compared data on a unit of area basis of the percentage of the total global number of species of birds, amphibians, mammals, reptiles, fish and vascular plants. The bird figures were compiled from avibase.bsc-eoc.org in late November 2018, following the Clements list.

Gambia 232
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Peterson Field Guide to North American Bird Nests: A Field Guide Review

10,000 Birds

Species are organized by family and families are arranged in taxonomic order according to American Ornithological Society’s Checklist of North American Birds , 7th edition through the 59th Supplement (2018).

Eggs 220