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From: jms@turing.newcastle.ac.uk (J.M. Spencer)
Newsgroups: rec.birds
Subject: Re: birds growing new feathers
Keywords: birds, new feathers
Message-ID: <1989Oct31.173750.12436@newcastle.ac.uk>
Date: 31 Oct 89 17:37:50 GMT
References: <8910291210.aa15790@BONNIE.ICS.UCI.EDU> <2494@cbnewsl.ATT.COM>
Sender: J.M.Spencer@ac.uk.newcastle
Organization: Computing Laboratory, U of Newcastle upon Tyne, UK NE17RU
Lines: 2

The verb is "moult" hence "moulting", the period during which it occurs is
also called "the moult".