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An Experimental and Teleonomic Investigation of Avian Brood Parasitism
TLDR
Avian brood parasitism, the phenomenon in which certain birds, the parasites, deposit their eggs in the nests of other birds, their hosts, is especially well suited to teleonomic studies since it provides a system in which the presence or absence of relatively obvious adaptations can be examined in two interacting genetic lineages.
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Evolutionary Rates and Host Defenses Against Avian Brood Parasitism
TLDR
It is hypothesized that few intermediate species exist, because host defenses are selected so strongly that the time span over which any species shows an intermediate rejection rate is of short duration, and the number of species in transition from accepter to rejecter is always low.
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Recent advances in understanding migration systems of New World land birds
TLDR
periodic reviews focus future research and inform conservation and management; here, the combined experiences working on Western Hemisphere avian migration systems are taken advantage to highlight recent lessons and critical gaps in knowledge.
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Nest desertion and cowbird parasitism: evidence for evolved responses and evolutionary lag
TLDR
The results indicate that increased nest desertion is an evolved response to cowbird parasitism, as one would otherwise expect no relationship between desertion frequency and the costs and length of exposure to cow bird parasitism.
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Conserving migratory land birds in the new world: do we know enough?
TLDR
Stable-isotope methodology has offered an opportunity to identify linkages between breeding and wintering sites, which facilitates understanding the complete annual cycle of birds, one of the poorest-understood events in a bird's life.
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Mechanisms of avian egg-recognition: Do birds know their own eggs?
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Radio-Tracking Confirms a Unique Diurnal Pattern of Spatial Occurrence in the Parasitic Brown-Headed Cowbird
TLDR
The cowbird's commuting pattern, which is unique among passerines, involves a shift from largely asocial behavior in the morning to extreme sociality in the afternoon, unlike related nonparasitic icterids that disperse from central breeding sites to feed.
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Mechanisms of avian egg recognition: Which egg parameters elicit responses by rejecter species?
TLDR
Birds have apparently responded evolutionarily to brood parasitism by developing recognition of their own eggs, rather than by developed recognition and rejection specific to parasitic eggs.
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Relic behaviours, coevolution and the retention versus loss of host defences after episodes of avian brood parasitism
TLDR
Testing for egg recognition in two populations that are currently unparasitized but that are descended from lineages likely to have been parasitized in the past suggests that both the coevolutionary cycles and single trajectory models have importance and that rejection behaviour can have insignificant costs.
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Parasitic birds and their hosts
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