Ring-billed Gull (Larus delawarensis) Science Article 6
abstract
The role of nest location and density in determining breeding success in Ring-billed Gulls (Lams delawarensis), to our knowledge, has not been studied previously. In breeding colonies some nests will be located centrally while others are peripheral.
WILLIAM E. SOUTHERN, THE WILSON BULLETIN Vol. 86, No. 3