Behaviour
Pied-billed Grebes rarely fly. They make a slow dive frequently, especially when in danger, diving to about 20 feet or less. They dive for about 30 seconds and may move to a more secluded area of the water, allowing only the head to be visible to watch the danger dissipate. This frequency in diving has earned them the description of being reclusive or shy in nature. It hass also earned them nicknames like "hell-diver." They rarely spend time in flocks. Their courtship include calling and sometimes duets. Males will show territorial behaviour if another male is at the edge of his territory. They face each other and then turn their heads and bills up. Then they turn away and start calling. Then they turn back around to look at one another.
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“The methodological advice to interpret in a way that optimizes agreement should not be conceived as resting on a charitable assumption about human intelligence that might turn out to be false. If we cannot find a way to interpret the utterances and other behaviour of a creature as revealing a set of beliefs largely consistent and true by our standards, we have no reason to count that creature as rational, as having beliefs, or as saying anything.”
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