•  
  •  
 

Publication Date

3-1-2000

Abstract

The Fish Crow (Corvus ossifragus) is found primarily in the southeastern United States, along the Gulf and Atlantic coasts, from Texas to Massachusetts, and inland along major waterways, rivers, swamps and lakes (AOU 1998). In the past several decades, particularly since 1960, the population has increased markedly, especially along inland waterways and rivers, but also north along the Atlantic seaboard (Potter et al 1980, Veit and Peterson 1993). This range expansion has been dramatic, and is apparently still underway as evidenced by the fact that they continue to increase in locations where they were unknown as recently as five years ago. In addition, there is strong evidence that a portion of the population now undertakes some form of spring and fall migration-with the most recently colonized areas being abandoned in winter. During March migrant Fish Crows begin appearing along the Mississippi River north to Illinois (Bohlen 1989), and up the Atlantic coast to Massachusetts (Veit and Peterson 1993). These dates are also consistent with the species spring aITival in recently colonized parts of northeast Texas. The range of the Fish Crow in northeast Texas was delineated from information gleaned from published reports and personal observations from 1991-1999.

Download

Share

COinS