Not in such birds as woodpeckers, which use the stiffened tail as a
brace.
Sankar Chatterjee proposed that the stiffened tail of dromaeosaurids was
evolved for this very purpose. Or maybe this feature was originally evolved
as a dynamic stabilizer during running (as Ostrom proposed), and was
co-opted by small dromaeosaurs for climbing (and perhaps the sickle-claw as
well).
Many scansorial mammals have scales on the underside of the tail, which
serves much the same purpose during tree climbing. Scalytail squirrels
(Anomaluridae) get their name from this feature.
Tim
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