Caprimulgus clarus
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~30% in a week ~60%
The slender-tailed nightjar (Caprimulgus clarus) is a species of nightjar in the family Caprimulgidae. It is found in parts of eastern and central Africa, including the Democratic Republic of the Congo, Ethiopia, Kenya, Somalia, South Sudan, Tanzania, and Uganda.
The slender-tailed nightjar is a medium-sized nightjar, measuring approximately 25–28 cm in length. It has cryptically patterned brown, grey, and black plumage, providing effective camouflage against dry ground and leaf litter. The head is relatively large and flattened, with a small bill and a very wide gape adapted for catching insects in flight. The tail is long and tapered, with the central feathers extending beyond the others, giving rise to the species’ common name.
Sexes are similar in appearance, though males may show slightly more prominent pale patches on the wings. No subspecies are currently recognized. The species is distributed across eastern and parts of central Africa. It inhabits dry, open environments including savanna, dry woodland, bushland, open scrub, rocky areas, and sparsely vegetated grassland. It is often associated with semi-arid regions and may occur... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Samburu National Reserve | 🇰🇪 Kenya | |
| 2 | Tsavo West National Park | 🇰🇪 Kenya | |
| 3 | Amboseli National Park | 🇰🇪 Kenya | |
| 4 | Lake Mburo National Park | 🇺🇬 Uganda | |
| 5 | Tarangire National Park | 🇹🇿 Tanzania | |
| 6 | Kidepo Valley National Park | 🇺🇬 Uganda | |
| 7 | Murchison Falls National Park | 🇺🇬 Uganda | |
| 8 | Tsavo East National Park | 🇰🇪 Kenya | |
| 9 | Serengeti National Park | 🇹🇿 Tanzania | |
| 10 | Ngorongoro Conservation Area | 🇹🇿 Tanzania |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mombasa | 🇰🇪 Kenya |
With luck
About 10% of wildlife watchers report a Slender-tailed Nightjar sighting in Mombasa on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 86th most-seen of the 146 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a Slender-tailed Nightjar in Mombasa on a given day, against under 5% in December and January, the lowest months. That is one of Mombasa's driest months, with about 40 mm of rain against 220 mm in May.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Slender-tailed Nightjar sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Mombasa, in our data
Mombasa is the only city on Wallace's Line with enough records to rate Slender-tailed Nightjar sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Slender-tailed Nightjar is recorded against all the birds logged in Mombasa (28 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
