Validity of ageing Wrens Troglodytes troglodytes on fourth primary spots admin December 27, 2011 North America, Passeriformes, science article, Troglodytidae Comments Winter Wren (Troglodytes hiemalis) Science Article 1 abstract Hawthorn (1971) described a criterion for ageing many Wrens Troglodytes troglodytes based on the number of light ← Previous PostNext Post → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website