neotropical
adjective
neo·trop·i·cal ˌnē-ō-ˈträ-pi-kəl 
variants or less commonly neotropic
ˌnē-ō-ˈträ-pik
often capitalized
: of, relating to, or constituting the tropical New World biogeographic region that extends south, east, and west from the central plateau of Mexico
Example Sentences
Recent Examples on the Web One report commissioned by the CPRA includes a valuation of the marshland’s neotropical bird population, calculated via the millions of dollars tourists spend to watch their migration. 
Boyce Upholt, Wired, 23 July 2022 Recent bird sightings as reported to the Mass Audubon: Last week saw the arrival of a major wave of warblers and other neotropical migrant species on the heels of the major flow of warm air from the south. BostonGlobe.com, 21 May 2022 Hike the Walnut and Razorback trails in search of migratory neotropical songbirds. Joan Rusek, cleveland, 16 May 2022 With San Antonio being on the central flyway for neotropical migratory birds, 95% of birds flying north to south pass through this area on their way to warmer weather for the winter each year. Elena Bruess, San Antonio Express-News, 8 Jan. 2022 Indiana newcomers to birding can walk the wooded trails to search for neotropical migrants, such as Red-eyed Vireos, Wood Thrushes and vibrant Scarlet Tanagers. Ryan Martin, The Indianapolis Star, 13 July 2021 But the neotropical river otter (L. longicaudis) has largely remained a mystery. Sofia Moutinho, Science | AAAS, 26 May 2021 The neotropical otter calls are not unique to their species. Sofia Moutinho, Science | AAAS, 26 May 2021 Those two questions, says Wilf, are what happened in the tropics at the time the dinosaurs went extinct, and when did modern neotropical rainforests first appear. Alex Fox, Smithsonian Magazine, 1 Apr. 2021 See More
Boyce Upholt, Wired, 23 July 2022 Recent bird sightings as reported to the Mass Audubon: Last week saw the arrival of a major wave of warblers and other neotropical migrant species on the heels of the major flow of warm air from the south. BostonGlobe.com, 21 May 2022 Hike the Walnut and Razorback trails in search of migratory neotropical songbirds. Joan Rusek, cleveland, 16 May 2022 With San Antonio being on the central flyway for neotropical migratory birds, 95% of birds flying north to south pass through this area on their way to warmer weather for the winter each year. Elena Bruess, San Antonio Express-News, 8 Jan. 2022 Indiana newcomers to birding can walk the wooded trails to search for neotropical migrants, such as Red-eyed Vireos, Wood Thrushes and vibrant Scarlet Tanagers. Ryan Martin, The Indianapolis Star, 13 July 2021 But the neotropical river otter (L. longicaudis) has largely remained a mystery. Sofia Moutinho, Science | AAAS, 26 May 2021 The neotropical otter calls are not unique to their species. Sofia Moutinho, Science | AAAS, 26 May 2021 Those two questions, says Wilf, are what happened in the tropics at the time the dinosaurs went extinct, and when did modern neotropical rainforests first appear. Alex Fox, Smithsonian Magazine, 1 Apr. 2021 See More Word History
Etymology
neo- + tropical
Note: Introduced, along with nearctic, ethiopian entry 2, and palearctic, by the British zoologist Philip Sclater (1829-1913) in "On the general Geographical Distribution of the Members of the Class Aves [read June 16th, 1857]," in Journal of the Proceedings of the Linnean Society, Zoology, vol. 2 (1858), pp. 130-45.
First Known Use
1858, in the meaning defined above