Assertion: wagtail's feather | /r/HasProperty | pro-ocularis feature
Facets:
Source sentences:
text: Consultation with Krister Mild (co-author with Per Alström of Pipits and Wagtails of Europe, Asia and North America) confirmed both median and greater coverts as un-moulted juvenile feathers which, due to its north-easterly breeding distribution, is a pro-ocularis feature.