This is a list of Caprimulgiformes 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 Caprimulgiformes have had their numbers quantified.

The IOC World Bird List (version 15.1) recognizes 98 species of Caprimulgiformes.^[1] This list follows IUCN classifications for species names. Where IUCN classifications differ from other ornithological authorities, alternative names are noted.

Common name	Binomial name	Population	Status	Trend	Notes	Image
New Caledonian nightjar	Eurostopodus exul	0-49[2]	CR[2]	?[2]	May be extinct. Species is known from a single individual, taken in 1939.[2]
Jamaican poorwill	Siphonorhis americana	1-49[3]	CR[3]	?[3]	May be extinct. No records since 1860.[3]
White-winged nightjar	Eleothreptus candicans	600-1,700[4]	VU[4]	[4]	Total population is estimated to be 1,000-2,499 individuals, but population may be larger, depending on species density in unsurveyed areas of Brazil.[4]
Solomons nightjar	Eurostopodus nigripennis	800-2,499[5]	VU[5]	[5]
Palau nightjar	Caprimulgus phalaena	1,000-2,499[6]	LC[6]	[6]	Preliminary estimate.[6]
Sickle-winged nightjar	Eleothreptus anomalus	2,500-52,000[7]	VU[7]	[7]	Values are for total population. Large population variation is due to the common observation, but apparent scarcity of the species.[7]
Puerto Rican nightjar	Caprimulgus noctitherus	2,700-9,900[8]	VU[8]	[8]	Total population is estimated to be 4,100-14,900 individuals.[8]
Least poorwill	Siphonorhis brewsteri	4,140[9]	NT[9]	[9]	Total population is estimated to be 6,210 individuals.[9]
Bonaparte's nightjar	Caprimulgus concretus	10,000-19,999[10]	VU[10]	[10]	Preliminary estimate.[10]
Choco poorwill	Nyctiphrynus rosenbergi	10,000-19,999[11]	LC[11]	[11]	Preliminary estimate.[11]
Eared poorwill	Nyctiphrynus mcleodii	20,000-49,999[12]	LC[12]	[12]
Yucatan poorwill	Nyctiphrynus yucatanicus	20,000-49,999[13]	LC[13]	[13]
Dusky nightjar	Antrostomus saturatus	20,000-49,999[14]	LC[14]	[14]
Short-tailed nighthawk	Lurocalis semitorquatus	50,000-499,999[15]	LC[15]	[15]
Spot-tailed nightjar	Caprimulgus maculicaudus	50,000-499,999[16]	LC[16]	[16]
Yucatan nightjar	Caprimulgus badius	50,000-499,999[17]	LC[17]	[17]
Tawny-collared nightjar	Antrostomus salvini	50,000-499,999[18]	LC[18]	[18]
Antillean nighthawk	Chordeiles gundlachii	200,000[19]	LC[19]	[19]
Mexican whip-poor-will	Antrostomus arizonae	320,000[20]	LC[20]	[20]
White-tailed nightjar	Hydropsalis cayennensis	500,000-4,999,999[21]	LC[21]	[21]
Ocellated poorwill	Nyctiphrynus ocellatus	500,000-4,999,999[22]	LC[22]	[22]
Red-necked nightjar	Caprimulgus ruficollis	575,000-770,000[23]	NT[23]	[23]	Consists of two subspecies, so these estimates are very preliminary.[23]
Common poorwill	Phalaenoptilus nuttallii	1,700,000[24]	LC[24]	[24]
Eastern whip-poor-will	Antrostomus vociferus	1,800,000[25]	NT[25]	[25]
Buff-collared nightjar	Antrostomus ridgwayi	2,000,000[26]	LC[26]	[26]
Lesser nighthawk	Chordeiles acutipennis	2,400,000-5,500,000[27]	LC[27]	[27]
European nightjar	Caprimulgus europaeus	2,980,000-5,550,000[28]	LC[28]	?[28]	European population estimated at 11,190,000-2,220,000 mature individuals; estimate is an extrapolation of these values.[28]
Rufous nightjar	Antrostomus rufus	5,000,000-49,999,999[29]	LC[29]	[29]
Chuck-will's-widow	Antrostomus carolinensis	5,700,000[30]	NT[30]	[30]
Pauraque	Nyctidromus albicollis	20,000,000[31]	LC[31]	[31]
Common nighthawk	Chordeiles minor	23,000,000[32]	LC[32]	[32]

Common name	Binomial name	Population	Status	Trend	Notes	Image
Prigogine's nightjar	Caprimulgus prigoginei	unknown[33]	DD[33]	?[33]	No confirmed records since last recorded specimen was in 1955.[33]
Salvadori's nightjar	Caprimulgus pulchellus	unknown[34]	LC[34]	[34]
Heinrich's nightjar (Satanic nightjar)	Eurostopodus diabolicus	unknown[35]	LC[35]	[35]	No empirical population data, but given large range, population is unlikely to be small.[35]

• Lists of birds by population
• Lists of organisms by population