![]() This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are available on Dryad at. Received: FebruAccepted: ApPublished: May 18, 2016Ĭopyright: © 2016 Golüke et al. PLoS ONE 11(5):Įditor: Csaba Moskát, Hungarian Academy of Sciences, HUNGARY The finding that females are capable to smell their own egg may inspire more research on the potential of olfaction involved in egg recognition, especially in cases where visual cues might be limited.Ĭitation: Golüke S, Dörrenberg S, Krause ET, Caspers BA (2016) Female Zebra Finches Smell Their Eggs. However, shortly before hatching, females preferred significantly the odour of their own egg. ![]() After the onset of incubation, females chose randomly and showed no sign of discrimination. In a binary choice experiment, female zebra finches were given the choice between the scent of their own and a conspecific egg. without any spotting pattern, and intraspecific brood parasitism frequently occurs. Zebra finches are colonial-breeding songbirds. Here, we investigated whether female zebra finches ( Taeniopygia guttata) are able to discriminate between their own and a conspecific egg based on olfactory cues alone. However, olfactory egg recognition has almost been completely ignored. In birds, much emphasis has been placed on understanding the visual mechanisms underlying egg recognition. Therefore selection should favour mechanisms to discriminate between own and foreign offspring. ![]() X Research source Ultimate Encyclopaedia of Caged and Aviary Birds.Parental investment in unrelated offspring seems maladaptive from an evolutionary perspective, due to the costs of energy and resources that cannot be invested in related offspring at the same time. Although the birds themselves are not ill, they could pose a possible risk to vulnerable people. Some birds carry diseases such as salmonella or chlamydia. These include the very young or old, people on chemotherapy or those with health conditions which suppress the immune system. People with suppressed immune systems are at risk for picking up infections easily.
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