We conducted a comprehensive bibliographic review of existing, publicly available references on bird and bat fatality information for Latin America through the year 2020. For this review, the definition of Latin America was based on the criteria from the United Nations Educational, Scientific, and Cultural Organization (UNESCO [26]) and World Atlas [27], with modifications, to include all the countries and territories of South and Central America (including Mexico) and the Caribbean Islands (including Puerto Rico). For the web search, we used Google Search Engine (https://www.google.com/), with final searches completed by August 1, 2020, using combinations of the following key words: Latin America, South America, Central America, Mexico, Caribbean, birds, avian, bats, fatality, mortality, wind, turbine, facility, project, collision, effects, impacts, post-construction, monitoring, evaluation (with their corresponding Spanish terms). For the specialized literature, we consulted Google Scholar (https://scholar.google.com/); the American Wind Wildlife Institute [28] and The Library of Congress [29] literature databases; and recent bibliographic reference lists [30, 31].

The resulting pool of search results was evaluated through a desktop review to categorize references based on their relevance, determined by the type or level of information related to bird and bat fatalities in Latin America. Guided by the objectives of this study, only references that corresponded to bird, bat or bird and bat PCFM studies at projects in Latin America, and that included explicit fatality information, were included. Information from these references regarding project geographic location, survey dates, how fatalities were found (standardized PCFM searches or incidentally), individuals and/or species found and their International Union for Conservation of Nature (IUCN) conservation status (Least Concern, Near Threatened, and Threatened; [32]), was compiled to determine which references would be used for further review. Although individual countries in Latin America might have their own threatened species listings (and should be consulted for individual countries), Threatened species (Vulnerable, Endangered, and Critically Endangered species) in this study were defined following the IUCN Red List [32], as these globally accepted criteria for assessing extinction risk have been adopted by many countries worldwide, and specifically, in Latin America [33, 34].

References that provided number of fatalities per species, as well as the type of search being conducted, were reviewed in further detail and the species-specific information presented in them constitutes the core for our bird and bat fatality summaries. References that contained qualitative (species names) or quantitative (number of fatalities) fatality-related information but no species-level data (numbers of fatalities per species) that could be compiled for species-specific fatality summaries, or references that didn't clearly state which fatalities were found during what type of search (i.e., during standardized PCFM searches or incidentally) were excluded from further review. Information regarding the composition of bird and bat fatalities from all references, including those that did not meet our criteria for inclusion in fatality summaries, is presented in this review.

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