Definition of fledge in English:


Syllabification: fledge
Pronunciation: /flej


[no object]
1(Of a young bird) develop wing feathers that are large enough for flight.
More example sentences
  • Young birds fledge at 14 to 22 days and are partially dependent on adult birds for 23 to 28 days post-fledging.
  • Young birds fledge after a length of time that varies widely between species, but is roughly similar to the length of the incubation period.
  • The young chicks fledge or leave the nest in around 60 days and become fully independent in 14 more days.
1.1 [with object] Bring up (a young bird) until its wing feathers are developed enough for flight.
More example sentences
  • Although we may have missed a few birds that lost their eggs early, it is unlikely that we missed birds that fledged chicks.
  • Breeding couples are generally able to successfully fledge a chick only once in nine years.
  • Males were sampled on average 4 days after they had fledged their nestlings.
2 [with object] Provide (an arrow) with feathers.


mid 16th century: from the obsolete adjective fledge 'ready to fly,' from Old English, of Germanic origin; related to Dutch vlug 'quick, agile', also to fly1.

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