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Which passeriform families show strong differences in male and female plumage?
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Passeriform
Reed warbler (Acrocephalus scirpaceus).
In the order Passeriformes, many species exhibit sexual dimorphism, a condition where adult males display brighter colors and more striking patterns than females.1
Families that notably show strong differences in male and female plumage include:
- Tanagers (Thraupidae)1
- Wood warblers (Parulidae)1
- New World orioles (Icteridae)1
Within these families, sexual dimorphism is often more pronounced in temperate zone species compared to their tropical counterparts. Additionally, many passerines are seasonally dimorphic, with males developing brighter plumage during the breeding season and duller coloration in the winter. In contrast, juvenile birds of both sexes and adult females typically possess cryptically colored plumage, which aids in concealment.1