Skip to main content

White-nest swiftlet (Aerodramus fuciphagus)

Walet sarang-putih or edible-nest swiftlet or white-nest swiftlet or Collocalia fuciphaga (Aerodramus fuciphagus) are bird species in Apodidae, sexual monomorphism, small in size, insect eaters, have the ability to echolocate, have at least six subspecies and are most farmed.

A. fuciphagus has a size of 10-16 cm and wings are long, slender, slightly curved backward and the tip is tapered. The upper part is blackish brown and the lower part is brown. The tail is pale brown or gray or dark brown, the eyes are wide and iris dark brown, the beak and legs are black.

Dlium White-nest swiftlet (Aerodramus fuciphagus)

White-nest swiftlet has six subspecies: Aerodramus fuciphagus fuciphagus, Aerodramus fuciphagus dammermani, Aerodramus fuciphagus inexpectatus, Aerodramus fuciphagus micans, Aerodramus fuciphagus perplexus and Aerodramus fuciphagus vestitus.

Edible-nest swiftlet is able to do echolocation like bats by producing a certain frequency sound intermittently and then recapturing the reflection of the sound to determine the distance and location of an object.

Bats only produce low-frequency infrasonic sounds, but sounds by A. fuciphagus are capable of being heard by the human ears. This shrill sound is produced by an organ behind the throat called cyrinx.

This echolocation capability enables them to fly in dark places, find nests and detect prey. Echolocation of this swallow is also used to communicate and give warnings to other swiftlets not to approach the nest.

The legs are short and not strong so they cannot be used for walking and perching, but the wings have an efficient and strong ability where they fly without stopping for 12 hours to hunt and reproduce.



The white-nest swiftlet forages in the open at dawn and returns to the nest at dusk. In the morning the bird flies over a paddy field to snatch flying insects. During the day they fly to plantations and forests to look for insects between the trees.

Edible-nest swiftlet also often fly over lakes and rivers to grab insects on the surface of the water. In the afternoon returned to the fields and when it began to get dark they circled around the nest before resting.

The mating season in November-April when a pair of birds look for the place that is considered the safest to make a nest that will be built using saliva in a rock gap or cave. Males and females actively build nests that require up to 40 days.

Females lay 2 white eggs and incubate the female and male alternately for 13-15 days until the eggs hatch. The mother will feed the babies for up to 40 days and the swallow teenager is able to fly to find his own food.

Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Apodidae
Genus: Aerodramus
Species: A. fuciphagus

Popular Posts

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...

Javan mocca or Javan slender caesar (Amanita javanica)

OPINION - Javan mocca or Javan slender caesar ( Amanita javanica ) is a mysterious fungus species and has been enigmatic since it was first reported by Boedijn in 1951 and after that no explanation or reporting of specimens is believed to be the same as expected. Boedijn (1951) described A. javanica which grew on Java island as having the characteristics covered in the Amanita genus. Corner and Bas in 1962 tried to describe Javan mocca and all species in Amanita based on specimens in Singapore. Over time some reports say that they have found A. javanica specimens in other Southeast Asia including also China, Japan, India and Nepal. But there is no definitive knowledge and many doubt whether the specimen is the same as described by Boedijn (1951). I was fortunate to have seen this species one afternoon and soon I took out a camera for some shots. In fact, I've only met this mushroom species once. Javan mocca is an endangered species and I have never seen in my experience in...

Salak (Salacca zalacca)

Salak or snake fruit ( Salacca zalacca ) is a species of palm plant in Arecaceae, dioesis, shrubs and not trunked, has many thorns, many shoots, grows into dense and strong clumps, spreads below or above the ground, often branching and 10-15 cm diameter. S. zalacca has compound leaves, pinnate and 3-7 m long. Petiole, midrib and sapling have many long thorns, thin spines and a blackish-gray color. Minor leaves have a lanceolate shape, a pointed tip, 8x85 cm and a white underside by a waxy coating. The flowers in the cob are compound, appear in the armpit of the leaf, stem, initially covered by a sheath then dry and break down like fibers. Male flowers 50-100 cm long, 4-12 cylindrical items, 7-15 cm long, reddish in the armpits of tightly arranged scales. Female flowers 20-30 cm long, stemmed long and 1-3 items. The fruit has scaly skin, is eaten and is known as a table fruit, triangular shaped rather rounded or inverted ovoid, pointed at the base and rounded at the tip, 2.5-10 ...