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Archive for July 29, 2015

Male Ruby-throated Hummingbirds Leading Life of Leisure

7-28-15 hummer2  637Equality of the sexes has yet to reach some avian species. Among them is the Ruby-throated Hummingbird, the only species of hummingbird that breeds in the Northeast. After courtship and mating takes place, the male has next to no contact with his mate(s), possibly visiting them during nest construction, but he does not lift a feather to assist in raising their offspring. By herself the female selects a nest site, builds a nest (six to ten days), lays two eggs, incubates the eggs (12 – 14 days), broods them (9 days), removes their waste, or fecal sacs, for the first two days (after which the nestlings eject their droppings from the rim of the nest) and feeds them (a total of 22 – 25 days — while young are in nest, and for 4 – 7 days after they fledge). Males spend the summer feeding, preening, bathing, stretching their wings and fanning their tails, sleeping, roosting and sunbathing. Not a bad life for him; an exhausting one for her. (Thanks to Jeannie Killam and Terry Ross for photo op.)

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