Sneaks parking right next to birds (6)

I believe the answer is:

prowls

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'sneaks' is the definition.
The definition and answer can be both to do with motion as well as being verbs in their -s form.
Maybe there's an association between them I don't understand?

'parking right next to birds' is the wordplay.
'parking' becomes 'p' (abbreviation on road signs).
'right' becomes 'r' (common abbreviation).
'next to' is a charade indicator (letters next to each other).
'birds' becomes 'owls' (owl is a kind of bird).
'p'+'r'+'owls'='PROWLS'

Can you help me to learn more?

(Other definitions for prowls that I've seen before include "Walks about stealthily" , "Moves stealthily or loiters about" .)

I've seen this clue in The Mirror.

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