Search Database By Population Size

Search By

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Instructions:

Select the abundance from the dropdown, then press the search button.

Population Size Definitions:

Population size estimates are based on the scheme suggested by James Ferguson-Lees and David Christie in "Raptors of the world" (2001), and the user is referred to their discussion of the strengths and limitations of this approach. Their scale is as follows (with designations ending in 0.5 indicating that the population size estimate falls in the mid-range of the increment).

0 = Extinct

1 = 1-10 birds

2 = 11-100

3 = 101-1,000

4 = 1,001-10,000

5 = 10,001-100,000

6 = 100,001-1,000,000

7 = over 1 million birds