Assertion: grouse's feather | /r/HasProperty | moulted into immature plumage
Facets:
Source sentences:
text: The down feathers have been moulted into the immature plumage and at an age of 3 months another moult brings in their subadult plumage; now the two sexes can be easily distinguished.
text: The down feathers have been moulted into the immature plumage and at an age of 3 months another moult brings in their subadult plumage; now the two sexes can be easily distinguished.