A team of researchers from the Max Planck Institute for Ornithology and California Polytechnic State University found that the broken wing used by some birds to lure thieves from their nest is much wider. In their paper published in Proceedings of the Royal Society BThe team analyzed data from many sources to learn more about the spread of broken wings.
Biologists have known about the broken wing for more than 100 years, but its extent has not been well studied. It turned out that many members of the birds would sneer when thieves approached their nest, hoping to be chased. When they are too far away from the nest, the bird flies to safety.
The team’s work involved finding papers written on the broken wing species using the Web of Science, Google Scholar and the Handbook of Birds of the World and building a repository of information. They carried out screening tests that showed information about the process and found that it was more prevalent than previously known – they found it in 52 bird families (and with commands 13) over 300 types. They believe this information indicates that the species has developed independently in many cases.
The researchers then looked for patterns of birds using the technique to see if they could detect common patterns. They have eight modifiers that they can combine with a broken wing or tricking an injury. Importantly, they found that it is common for species to live from the equator, suggesting that this species is associated with short incubation periods. They also found that it was common in lowlands and in small areas of land to hide the presence of a nest.
The researchers noted that their research was limited by the availability of data and that the broken wing was used by other birds before they could detect it.
Parasitic bird embryos have been shown to strengthen the eggs so that they become strong
Léna de Framond et al, The broken wing shows the bird and the conditions for its development, Proceedings of the Royal Society B: Biological Sciences (2022). DOI: 10.1098 / rspb.2022.0058
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