What common physical characteristic defines members typically placed in the Order Gruiformes?
Answer
Stout bodies with strong legs adapted for walking on soft ground
The classification into the Order Gruiformes groups together birds like cranes, rails, gallinules, and coots based on shared adaptations, particularly concerning locomotion and body structure. Members of this order generally possess stout, robust bodies that provide stability and power. Their legs are characteristically strong, and their feet are often adapted specifically for traversing soft substrates, such as the muddy or marshy ground found in wetland environments where these birds forage and wade. The Whooping Crane perfectly embodies this description as a large, long-legged wading bird typical of this grouping.

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