Population declines of the endangered endemic birds on Grenada, West Indies

Abstract

SummaryThe Grenada DoveLeptotila wellsiand the Grenada Hook-billed KiteChondrohierax uncinatus mirutshave each apparently declined since initial surveys in 1987. In a midwinter 1989/1990 census I estimated that there were 75-85 Grenada Doves, compared with 100 in 1987. The 1989/1990 numbers include two small populations not located in 1987. The main population may have declined by 40-50% since 1987. Half as many Hook-billed Kites were seen in 1989/1990 as in 1987 when I estimated the total population to be 15-30. Although seasonal factors may be responsible for some of the differences, destruction of habitat has led to real declines. Unless the prime habitat is protected, extinction of both birds is likely.