Tense Togetherness
Most birds breed well spread out. Cape Gannets breed unusually close together. Most colony breeding birds bring materials to the nest. They space their nests so that neighbours cannot steal the material. Cape Gannets make their nest of guano (dried droppings). This will not be stolen. With nothing to lose the birds can breed closer together.
Skypointing
To let neighbours know they are about to move off the nest they “skypointing”.
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