Great crested grebe.
Podiceps cristatus.
(Linnaeus, 1758)
Like many grebes, the great crested grebe is very adept in water but can hardly walk on land. It waddles with great difficulty & drags itself around on its belly if it needs to.
This is because for maximum efficiency and thrust in the water (better to catch fish), the grebes' legs and feet are positioned as far back on their bodies as can be (next to the grebe's jacksie) unlike more terrestrial birds which have their legs (and feet) further forward.
Podiceps literally means "anus-foot" and cristatus literally means "crested". (Both latin).
All grebes, be they great crested, black-necked or little belong to the family Podicipedidae - the "anus feet".
The great crested grebe is therefore named scientifically as the:
"crested anus-foot".
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