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This is a list of Trogoniformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.
This list is not comprehensive, as not all Trogoniformes have had their numbers quantified.
Species by global population
| Common name | Binomial name | Population | Status | Trend | Notes | Image |
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| Javan trogon | Apalharpactes reinwardtii | 350 – 1500 | EN |
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| Baird's trogon | Trogon bairdii | 1500 – 7500 | NT |
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| Ward's trogon | Harpactes wardi | 10 000 – 20 000 | ||||
| Eared quetzal | Euptilotis neoxenus | 20 000 – 49 999 | NT |
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| Resplendent quetzal | Pharomachrus mocinno | 20 000 – 49 999 | NT |
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| Slaty-tailed trogon | Trogon massena | 20 000 – 49 999 | LC |
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| Black-headed trogon | Trogon melanocephalus | 50 000 – 499 999 | LC |
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| Citreoline trogon | Trogon citreolus | 50 000 – 499 999 | LC |
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| Mountain trogon | Trogon mexicanus | 50 000 – 499 999 | LC |
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| Collared trogon | Trogon collaris | 5 000 000 – 50 000 000 | LC |
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