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Constraints on host choice: why do parasitic birds rarely exploit some common potential hosts?
Comparison and experimental procedures are integrated and represent a novel approach that should prove useful for the understanding of interspecific ecological relationships in general and highlight the importance of considering multiple potential factors and their interactions for understanding absence of parasitism in potential hosts of parasitic birds.
Effect of nest and nest site characteristics on the risk of cuckoo Cuculus canorus parasitism in the great reed warbler Acrocephalus arundinaceus
The risk of cuckoo Cuculus canorus parasitism for great reed warbler Acrocephalus arundinaceus nests was evaluated in respect to nest and nest site structure in the reedbeds along canals in central Hungary, and differences between cases of single and multiple parasitism are weak.
Ultraviolet and green parts of the colour spectrum affect egg rejection in the song thrush (Turdus philomelos)
This is the first detailed study showing that different colour perception by the birds can affect their responses towards the parasitic egg, and suggests that the combination of UV and visible ranges of the spectra plays a major role in the evolution of discrimination processes, as well as in the development of the mimicry of the parasitic Egg.
Dierences in behaviour of closely related thrushes (Turdus philomelos and T. merula ) to experimental parasitism by the common cuckoo Cuculus canorus
- M. Honza
Data indicate that the rejection behaviour of Turdus species evolved as a defence against intraspecific nest parasitism, which contributes to cuckoos avoiding these potential host species.
The risk of parasitism in relation to the distance from reed warbler nests to cuckoo perches
It was found that reed warblers breeding further away from trees laid significantly larger eggs than birds breeding closer to trees.
Serologic survey of birds for West Nile flavivirus in southern Moravia (Czech Republic).
The results indicate that WNV activity in southern Moravia was limited during 2004-2006, and 13 of 391 wild birds had specific antibodies to WNV.
Common Cuckoo Cuculus canorus and host behaviour at Reed Warbler Acrocephalus scirpaceus nests
- A. Moksnes, E. Røskaft, Lise Hagen, M. Honza, C. Mørk, P. H. Olsen
- Biology, Environmental Science
- 28 June 2008
When partially depredating host clutches, Cuckoos showed the same behavioural pattern at parasitized and unparasitized nests, indicating that the latter may act as a potential reserve for egg-laying.
Are blackcaps current winners in the evolutionary struggle against the common cuckoo?
It is predicted that the intraclutch variation in egg appearance should be generally low in all individuals, and regarding conspecific eggs, rejection decisions should be highly dependent on the degree of mimicry between parasitic and host eggs, and found support for these predictions.
Behaviour of female common cuckoos, Cuculus canorus, in the vicinity of host nests before and during egg laying: a radiotelemetry study
There was significant variation in behaviour between cuckoos, particularly in the time of day when eggs were laid in host nests, and this variation can be attributed to the strong, but not absolute, host and habitat specificity of individuals.