Reports
Egg Size of the Large-billed Crow Corvus macrorhynchos
2015 Volume 47 Issue 1 Pages 40-42
Details
2015 Volume 47 Issue 1 Pages 40-42
From April to June 1993, Large-billed Crow Corvus macrorhynchos eggs at Ueno Zoological Gardens and Ueno Park were measured. During the breeding season, 68 eggs from 18 of the 43 incubated nests were measured. The range and mean dimensions of the 68 eggs measured were 39.4–54.7 mm, 45.2±2.8 mm (mean±SD) in length and 28.4–33.1 mm, 30.5±0.9 mm in breadth. The 67 eggs weighed ranged from 16.6–25.4 g, with a mean of 21.7±1.7 g SD.
