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McGILL BIRD OBSERVATORY |
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HY male Baltimore Orioles can be aged easily by their tails, and can often be distinguished from females by their brighter orange plumage on the head and breast; wing chord should be used to confirm sex (males >91 mm, females <91 mm).
The wing of HY males is dusky with some white edging, and may on average be slightly darker than that of HY females, but not enough so to be reliable.
The tail of HY Baltimore Orioles of both sexes is dull brown with some orange tinges, and with narrow and very tapered feathers.
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