Puerto Rican Nightjar (Antrostomus noctitherus)
Illustration redrawn by AI from a real photograph

Puerto Rican Nightjar

Antrostomus noctitherus (Wetmore, 1919)

22–23 cmLength36 gWeight

The Puerto Rican nightjar, Puerto Rican whip-poor-will or guabairo (Antrostomus noctitherus) is a bird in the nightjar family found in the coastal dry scrub forests in localized areas of southwestern Puerto Rico.

Busiest months: March · Most records: Puerto Rico

Vulnerable

Where and when it's recorded

Puerto Rican Nightjar has been recorded at 10 of the 8,171 birding hotspots we track, in 1 country or region.

Records by month Northern Hemisphere

Where it's recorded most

  1. La Parguera – town and nearest environsPuerto Rico313 records
  2. Cabo Rojo NWRPuerto Rico9 records
  3. Cabo Rojo - Salt FlatsPuerto Rico8 records
More places
  1. Bosque Estatal de Maricao – trail at km 16.8Puerto Rico6 records
  2. Salinas de Cabo Rojo-Centro Interpretativo y VeredasPuerto Rico6 records
  3. Reserva Natural Punta GuaniquillaPuerto Rico4 records
  4. Bosque Estatal de MaricaoPuerto Rico4 records
  5. Refugio de Vida Silvestre de BoquerónPuerto Rico2 records
  6. Reserva Natural Las CucharasPuerto Rico1 record
  7. Reserva Natural Laguna CartagenaPuerto Rico1 record

Countries and regions with the most records

Puerto Rico

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The Puerto Rican nightjar, Puerto Rican whip-poor-will or guabairo (Antrostomus noctitherus) is a bird in the nightjar family found in the coastal dry scrub forests in localized areas of southwestern Puerto Rico.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Puerto Rican Nightjar?

The Puerto Rican Nightjar is about 22–23 cm long and weighs around 36 g.

Where does the Puerto Rican Nightjar live?

Its breeding range: North America: southwestern Puerto Rico. It is most often recorded in Puerto Rico.

When is the best time to see the Puerto Rican Nightjar?

At the hotspots we track, it is recorded most in March (Northern Hemisphere).

Is the Puerto Rican Nightjar endangered?

The IUCN Red List classifies the Puerto Rican Nightjar as Vulnerable.

What does the Puerto Rican Nightjar eat?

Main food: Insects & other invertebrates.

What family is the Puerto Rican Nightjar in?

It belongs to the family Nightjars (Caprimulgidae), order Caprimulgiformes.

At a glance

Length
22–23 cm
Weight
36 g
Habitat
Woodland
Diet
Insects & other invertebrates
Lifestyle
Varied
Migration
Resident (barely migrates)
Conservation
Vulnerable
More measurements
Wing
132 mm
Tail
126 mm
Bill
17 mm
Tarsus
17 mm

Averages from the AVONET dataset; length from field guides where available.

Range

North America: southwestern Puerto Rico

Breeding range, IOC World Bird List 15.2

Classification

Family
Nightjars Caprimulgidae
Genus
Antrostomus

Other birds in the genus Antrostomus

Chuck-will's-widowChuck-will's-widowAntrostomus carolinensisRufous NightjarRufous NightjarAntrostomus rufusCuban NightjarCuban NightjarAntrostomus cubanensisHispaniolan NightjarHispaniolan NightjarAntrostomus ekmaniTawny-collared NightjarTawny-collared NightjarAntrostomus salviniYucatan NightjarYucatan NightjarAntrostomus badiusSilky-tailed NightjarSilky-tailed NightjarAntrostomus sericocaudatusBuff-collared NightjarBuff-collared NightjarAntrostomus ridgwayiEastern Whip-poor-willEastern Whip-poor-willAntrostomus vociferusMexican Whip-poor-willMexican Whip-poor-willAntrostomus arizonaeDusky NightjarDusky NightjarAntrostomus saturatus
Puerto Rican Nightjar

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by samzhang. ↗

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