moulter1
/ˈməʊltə/(also molter)
noun
A moulting bird or other animal.
Origin
Late Middle English; earliest use found in Promptorium Parvulorum. From moult + -er.
moulter2
/ˈməʊltə/(also mowder, mowlter, molter) Now English regional and Caribbean
verb
[no object] = moult.
Origin
Mid 17th century; earliest use found in Shackerley Marmion (1603–1639), playwright and poet. Variant of moult, perhaps after moulter, or perhaps after moulter.