This is a list of Apodiformes 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.

Members of Apodiformes include the swifts, treeswifts, and hummingbirds. Note that some ornithological authorities (e.g., IUCN/BirdLife International) no longer recognize Apodiformes, and place all members within Caprimulgiformes. However, Apodiformes is maintained as a separate order here to match IOC taxonomy (IOC World Bird List version 15.1). For more discussion of this taxonomic complex, see Strisores.

This list is not comprehensive, as not all Apodiformes have had their numbers quantified.

The IOC World Bird List (version 15.1) recognizes 480 species of Apodiformes, one of which is extinct.

One member of Apodiformes is extinct:

Brace's emerald (Riccordia bracei) - went extinct circa 1877.

Species by global population

Common nameBinomial namePopulationStatusTrendNotesImage Turquoise-throated puffleg Eriocnemis godini 1-49 ? May be extinct; no confirmed records since only specimen was collected in 1850. Not classified as extinct due to unconfirmed record in 1976. Santa Marta sabrewing Campylopterus phainopeplus 1-49 Very few records exist, with less than 5 confirmed sightings since 1946.Blue-throated hillstarOreotrochilus cyanolaemus80-110 Subpopulations include 30-50 mature individuals in Cerro de Arcos and Moras, 30-40 in Guanazán and Burrourco, and <20 in Fierro Urco. Black-breasted puffleg Eriocnemis nigrivestis 100-150 Chilean woodstar Eulidia yarrellii 210 Total population is estimated to be 316 individuals. Gorgeted pufflegEriocnemis isabellae250-999 Total population is estimated to be 900 individuals. Short-crested coquette Lophornis brachylophus 250-999 Total population is estimated to be 350-1,500 individuals.Perijá starfrontletCoeligena consita250-999Total population is estimated to be 375-1,499 individuals. Colorful puffleg Eriocnemis mirabilis 250-999 Total population is estimated to be 350-1,500 individuals.Blue-bearded helmetcrestOxypogon cyanolaemus250-999 Grey-bellied comet Taphrolesbia griseiventris 250-999 Total population is estimated to be 350-1,500 individuals.Buffy helmetcrestOxypogon stuebelii250-999 Precautionary estimate for mature individuals, acknowledging some studies have estimated a population as high as 10,000 mature individuals. Glittering starfrontlet (Dusky starfrontlet) Coeligena orina 250-2,499 Total population is estimated to be 1,554 individuals. Sapphire-bellied hummingbird Chrysuronia lilliae 285-440 Total population was estimated in 2007 to be 1,050 individuals. Likely lower now due to further declines.Atiu swiftletAerodramus sawtelli340-400 Santa Marta blossomcrown Anthocephala floriceps 500-2,500 Oaxaca hummingbird Eupherusa cyanophrys 600-1,700 Total population is estimated to be 1,000-2,499 individuals. Dark-rumped swiftApus acuticauda 900-10,000 Long-tailed woodnymphThalurania watertonii1,000-2,499 Purple-backed sunbeam Aglaeactis aliciae 1,000-2,499 Total population is estimated to be 1,500-4,000 individuals. Violet-throated metaltailMetallura baroni 1,000-2,499 Tres Marias hummingbirdCyanthus lawrencei1,000-2,499 Preliminary estimate, actual population may be higher. Marvelous spatuletailLoddigesia mirabilis 1,000-2,499 Esmeraldas woodstarChaetocercus berlepschi 1,000-2,700 Total population is estimated to be 1,600-3,900 individuals.Tolima blossomcrownAnthocephala berlepschi1,000-4,500 Lyre-tailed hummingbird (Inagua woodstar)Nesophlox lyrura1,000-4,999Total population is estimated to "number in the low thousands." Juan Fernández firecrownSephanoides fernandensis 1,500-3,500 Total population is estimated to be 2,298-5,263 individuals. Mangrove hummingbirdChrysuronia boucardi 1,500-7,000 Total population is estimated to be 2,500-9,999 individuals. IUCN/BirdLife International place this species in genus Amazilia. Seychelles swiftletAerodramus elaphrus 1,700-2,000 Total population is estimated to be 2,500-3,000 individuals. Glow-throated hummingbirdSelasphorus ardens 2,000-12,000 Estimate assumes 10% of suitable habitat is occupied. True population may be toward lower end of estimate. Outcrop sabrewingCampylopterus calcirupicola2,400-15,000 Total population is estimated to be 3,600 - 22,000 individuals, assuming 10% occupancy of suitable habitat.Ashy-tailed swiftChaetura andrei2,500-9,999 Preliminary estimate using known population density of a congeneric species (C. spinicaudus).Hook-billed hermitGlaucis dohrnii2,500-9,999 Total population is estimated to be 2,800-24,000 individuals, but is expected to be toward the lower arm due to the species' habitat needs. Wedge-tailed hillstar Oreotrochilus adela 2,500-9,999 Total population is estimated to be, at most, 15,200 individuals. Scissor-tailed hummingbird Hylonympha macrocerca 3,000-4,000 Total population is estimated to be 5,000-6,000 individuals. Mariana swiftlet Aerodramus bartschi 3,000-5,000 Total population (excluding introduced population on O'ahu) is 5,200 individuals. Royal sunangelHeliangelus regalis 3,000-8,999 Total population is estimated to be 5,000-12,500 individuals, combining population estimates from Ecuador (2,500) and Peru (2,500-10,000). Little woodstarChaetocercus bombus 5,000-19,999 White-bearded helmetcrestOxypogon lindenii5,000-25,000? Mexican sheartailDoricha eliza 5,600-8,300 Total population is estimated to be 8,500-12,500 individuals. Mexican woodnymph Eupherusa ridgwayi 6,000-15,000 Total population is estimated to be 10,000-19,999 individuals. White-tailed hummingbird Eupherusa poliocerca 6,000-15,000 Total population is estimated to be 10,000-19,999 individuals. Black inca Coeligena prunellei 7,500 Total population is estimated to be 11,250 individuals.Philippine spinetailMearnsia picina>10,000Population of mature individuals is "not thought to number fewer than 10,000." Honduran emeraldAmazilia luciae 10,000-19,999 Mascarene swiftlet Aerodramus francicus 10,000-19,999 Preliminary estimates based on counts for colonies on Mauritius and the Réunion archipelago. Chestnut-bellied hummingbirdSaucerottia castaneiventris10,000-19,999 A recent study estimated population to be as high as 117,733 mature individuals, so values given may be a large underestimate. Koepcke's hermitPhaethornis koepckeae 13,000-57,000 Total population is estimated to be 20,000-86,000 individuals. Perijá metaltailMetallura iracunda14,000-37,000 Total population is estimated to be 21,250-55,250 individuals. Plain swift Apus unicolor 15,000-40,000 ? White-fronted swift Cypseloides storeri 20,000-49,999 ? Trend and assessment are unknown due to uncertainties regarding this species' habitat requirements. Emerald-chinned hummingbird Abeillia abeillei 20,000-49,999 Veraguas mango (Veraguan mango)Anthracothorax veraguensis20,000-49,999 Green mangoAnthracothorax viridis20,000-49,999 Xantus's hummingbird Basilinna xantusii 20,000-49,999 Beautiful hummingbird (Beautiful sheartail) Calothorax pulcher 20,000-49,999 Costa Rican swiftChaetura fumosa20,000-49,999 Humboldt's hummingbird (Humboldt's sapphire)Chrysuronia humboldtii20,000-49,999 Cozumel emerald Cynanthus forficatus 20,000-49,999 White-chinned swiftCypseloides cryptus20,000-49,999 Slender sheartail Doricha enicura 20,000-49,999 White-bellied mountain-gemLampornis hemileucus20,000-49,999 Garnet-throated hummingbird Lamprolaima rhami 20,000-49,999 White-crested coquetteLophornis adorabilis20,000-49,999 Black-crested coquette Lophornis helenae 20,000-49,999 White-tailed emeraldMicrochera chionura20,000-49,999 Coppery-headed emeraldMicrochera cupreiceps20,000-49,999 Rufous sabrewing Pampa rufus 20,000-49,999 Great swallow-tailed swift Panyptila sanctihieronymi 20,000-49,999 Mexican hermitPhaethornis mexicanus20,000-49,999 Magenta-throated woodstarPhilodice bryantae20,000-49,999 Purple-throated woodstarPhilodice mitchellii20,000-49,999 Wine-throated hummingbird Selasphorus ellioti 20,000-49,999 Volcano hummingbirdSelasphorus flammula20,000-49,999 Scintillant hummingbirdSelasphorus scintilla20,000-49,999 Sparkling-tailed woodstarTilmatura dupontii 20,000-49,999 Bee hummingbirdMellisuga helenae22,000-66,000 Blue-headed hummingbirdRiccordia bicolor25,000-150,000Dot-eared coquetteLophornis gouldii28,000-376,000 Total population is tentatively estimated to be 43,000 - 563,000 individuals, assuming that 5-10% of suitable habitat is occupied.Puerto Rican emeraldRiccordia maugaeus30,000-39,999Hooded visorbearerAugastes lumachella35,000-100,000 White-tailed sabrewingCampylopterus ensipennis50,000-99,999 Spot-fronted swiftCypseloides cherriei50,000-99,999May be an underestimate, given the frequency of observations. Violet sabrewing Campylopterus hemileucurus 50,000-499,999 Chapman's swiftChaetura chapmani50,000-499,999 Blue-throated goldentail (Blue-throated sapphire)Chlorestes eliciae50,000-499,999 Violet-bellied hummingbirdChlorestes julie50,000-499,999 Garden emeraldChlorostilbon assimilis50,000-499,999 Sapphire-throated hummingbirdChrysuronia coeruleogularis50,000-499,999 Golden-crowned emeraldCynanthus auriceps 50,000-499,999 Stripe-tailed hummingbird Eupherusa eximia 50,000-499,999 Black-bellied hummingbirdEupherusa nigriventris50,000-499,999 White-tipped sicklebillEutoxeres aquila50,000-499,999 Amethyst-throated mountain-gem Lampornis amethystinus 50,000-499,999 Purple-throated mountain-gemLampornis calolaemus50,000-499,999 Green-throated mountain-gem Lampornis viridipallens 50,000-499,999 Rufous-crested coquetteLophornis delattrei50,000-499,999 SnowcapMicrochera albocoronata50,000-499,999 Plain-capped starthroat Heliomaster constantii 50,000-499,999 Purple-crowned fairy Heliothryx barroti 50,000-499,999 Values given are for total population. Fiery-throated hummingbirdPanterpe insignis50,000-499,999 Scaly-breasted sabrewing (Scaly-breasted hummingbird)Phaeochroa cuvierii 50,000-499,999 Dusky hummingbird Phaeoptila sordidus 50,000-499,999 Stripe-throated hermit Phaethornis striigularis 50,000-499,999 White-whiskered hermitPhaethornis yaruqui50,000-499,999 Charming hummingbirdPolyerata decora50,000-499,999 Blue-tailed hummingbirdSaucerottia cyanura 50,000-499,999 Snowy-bellied hummingbirdSaucerottia edward50,000-499,999 Bumblebee hummingbirdSelasphorus heloisa50,000-499,999 White-naped swiftStreptoprocne semicollaris 50,000-499,999 Tooth-billed hummingbirdAndrodon aequatorialis52,000-87,000 Total population is estimated to be 78,000-130,000 individuals.Caroline swiftletAerodramus inquietus83,500Value given is 1999 estimate for total population, excluding population on Yap. Value should therefore be considered an underestimate.Black swift (American black swift)Cypseloides niger170,000 Saw-billed hermitRamphodon naevius175,000-1,710,000 Total population is tentatively estimated to be 262,000 - 2,560,000 individuals, assuming 5-25% of suitable habitat is occupied.Lucifer hummingbird