Density and Population Size of Yellow-shouldered Parrots (Amazona barbadensis rothschildi) and Brown-throated Parakeets (Aratinga pertinax xanthogenius) on Bonaire, Netherland Antilles

In December 2009, we sampled 62 6-minute random-systematic counting points (k) to estimate the density and population size of yellow-shouldered parrots and brown-throated parakeets in a survey region (A) of 7,873 hectares, which covered the WashingtonSlaagbai National Park and forest, suburban, and agricultural areas between Brasil, Karpata, Dos Pos, Rincón, and Fontein. In March 2010, we sampled 104 points, covering a survey region of 17,000 hectares that included forest, urban, suburban, and agricultural areas in northern, central, and southern Bonaire....