"It's funny how emotional people get about cowbirds," said Dubina, who appreciates the complex natural history of the brood parasite
far better than most of us.
Sikes, "The reproductive biology of Ptomascopus morio, a brood parasite
of Nicrophorus," Journal of Zoology, vol.
: brown-headed cowbird (Molothrus ater) [cited 2015 Aug 8].
Costs of multiple parasitism for an avian brood parasite
, the Brown-headed Cowbird (Molothrus ater).
Community-level patterns of population recruitment in a generalist avian brood parasite
, the brown-headed cowbird.
This is because the adult Common Cuckoo is a brood parasite
. On its northern breeding grounds, the pairs will mate and then the female will lay her eggs in the nests of other birds, generally small warblers, pipits and chats.
A previous suggestion of a brood parasite
's benefit, reported nearly 50 years ago from giant cowbirds parasitizing oropendola nests in Panama, hasn't stood up to later research, says cuckoo researcher Juan Soler of the Arid Zones Experimental Station in Spain.
Our results show that internal incubation gives cuckoo chicks that crucial head start in life, allowing them to dispose of their nest mates - a superb adaptation to being a brood parasite
," said Professor Tim Birkhead, from the Department of Animal and Plant Sciences at the University of Sheffield.
Experts agree that any reduction in forest management, including the planting of tens of thousands of acres each year and the control of brood parasite
cowbirds, will result in a quick decline of the species.
Patterns of avian nest predators and a brood parasite
among restored riparian habitats in agricultural watersheds.
THE cuckoo is Britain's only brood parasite
. Females choose foster birds and lay eggs that mimic that species.
Indeed, most presumed brood parasite
eggs in earlier museum collections, the principal source for many of the Schonwetter's data, were identified only on the basis of appearance and geographical probability, rather than by actual observations of egg deposition.