National Geographic : 1941 Jan
© National Geographic Society toaacnrome DyW.U'.Uerecke Community-minded Flamingos Erect Their Nests of Marl and Soil Close Together The birds build up layer after layer of wet clay and gravel to a height of about 12 inches. The cup-shaped turrets areabout 14inches indiameter atthetopand 22 at bottom. Nearly all contain a solitary egg. Both father and mother bird incubate, working in 12-hourshifts forapproximately 34days.