User talk:2604:2000:40C3:3700:302F:74D7:6A27:D769

One writer notes that the blue footed booby creates steep sided nests which prevents siblicide. However, on the Galapagos, nests are on flat land and delineated only by a ring of guano and feathers yet two chicks were, more often than not, living well together. There must be some other mechanism to keep the chicks from fighting.Jajacoco (talk) 17:50, 27 February 2016 (UTC)jajacoco