Changes in the Tail Feathers of the Adolescent Lyrebird

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Science  29 Jan 1965:
Vol. 147, Issue 3657, pp. 510-513
DOI: 10.1126/science.147.3657.510


The changes which take place in the tail of the male lyrebird as it develops to maturity over a period of 7 to 8 years are attributable both to moulting and to processes whereby certain plain feathers are transformed into filamentaries and medians by growth of the rachis and loss of barbs and barbules.