Abstract
The use of caves and rocky walls is common for some birds, like swifts, to shelter, sleep, nest, feed, and protect themselves from predators, wind, and rain. Several environmental and ecological factors associated with the habits and adaptations of certain species allow birds to use cave environments. The White-collared Swift Streptoprocne zonaris (Shaw, 1796) is distributed from Mexico and the Antilles south to northern Argentina, Paraguay, and southern Brazill, being frequent in areas with waterfalls and river rapids with rocky beds and crystal-clear water. Individuals live in flocks and have the habit of roosting and nesting in damp, dark caves or behind waterfalls. Herein, we aim to report the case and identify the cause of death of S. zonaris individuals found dead in a sinkhole in the State of Goiás, Brazil, in 2020. Global warming resulting from anthropogenic emissions of greenhouse gases can alter the natural fluctuations of atmospheric circulation systems, responsible for rainfall distribution, substantially affecting rainfall and increasing the frequency of heavy rainfall events in some locations. Due to climate change and the increasing frequency of flooding records, we have raised the hypothesis and drawn attention to our record may have been originated due to these climatic events. However, we do not dismiss the hypothesis that the flooding may be due to an extreme event. The fact that S. zonaris spends the night and nests close to water bodies makes the species more susceptible to the effects of a flash flood. Further studies will be able to show the real effects of global warming on the species.
Published Version
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