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

Comments

Popular

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 cm long, w…

God is tools

God and spirit are controversial discussions in science and even mythology will have no place among naturalists and for Darwinians. Apparently this has been final that mythology is a delusional, mystical and superstitious concept that cannot be empirically proven in the world of science.

Most scientists and science activists have agreed that god is nonsense, delusional and cannot be accommodated in the theory of evolution. This opinion can be understood methodologically and I agree with the sentences. But so many behaviors are very real and occur in the field.


I am a fieldman who goes to the wild every day, along rice fields and forests to watch insects to plants, talk to people especially in villages, visit Hindu-Buddhist temples built in the 8th century, witnessing busyness in mosques, temples and churches.

I feel something is missing in the view of naturalists and Darwinians. There are short moments that are missed in analyzes in the timeline of human evolution. These little moment…

Crab-eating macaque (Macaca fascicularis)

Crab-eating macaque or long-tailed macaque (Macaca fascicularis) is a primate species in Cercopithecidae, brown with a lighter color abdomen and whitish hair on the face, polygamy, genome size 2946.84 Mb, 21 pairs of chromosomes, highly adaptive and wild animals that are able to follow human civilization.

M. fascicularis has at least 10 recorded subspecies: Dark-crowned long-tailed macaque (Macaca fascicularis ssp. atriceps), Burmese long-talied macaque (Macaca fascicularis ssp. aureus), Con Song long-tailed macaque (Macaca fascicularis ssp. condorensisis).



Common long-tailed macaque (Macaca fascicularis ssp. fascicularis), Simeulue long-tailed macaque (Macaca fascicularis ssp. fuscus), Kemujan long-tailed macaque (Macaca fascicularis ssp. karimondjawae), Lasia long-tailed macaque (Macaca fascicularis ssp. lasiae)

Philippine long-tailed macaque (Macaca fascicularis ssp. philippensis), Maratua long-tailed macaque (Macaca fascicularis ssp. tua), Nicobar crabeating macaque (Macaca fascic…

Chayote (Sechium edule)

Labu siam or jipang or mirliton squash or chayote (Sechium edule) is a plant species in Cucurbitaceae, growing vines and generally upwards, widely planted as food and a source of vitamin C where fresh fruit for salads or lightly cooked to remove sap.

S. edule grows on the ground or climbs large trees up to 12 m high, stems are green, not woody and are usually cultivated anywhere as long as they have support. The ends of the stems are threaded to reach support or link themselves.


The leaves are oval, 10-25 cm wide, have many angles as the bones depend on variety and the surface has hair. Male flowers in groups and solitary female flowers, yellowish green, four or five petals and pistils in the middle.

The fruit hangs on the stem, is irregular in egg shape, slightly flattened and has rough wrinkles, 10-20 cm long, green or yellow, has a thin skin, white insides with a single hole, large and flat. Some varieties have thorny skin.

The fruit is boiled briefly to remove sap and eaten for a v…

Barbados lily (Hippeastrum puniceum)

Barbados lily or amaryllis lily (Hippeastrum puniceum) is a species of perennial flowering plant in Amaryllidaceae, grows in the tropics, has 4-6 leaves, bright green, 30-60 cm long and 2.5-3 cm wide, white waxed, tubular and shrink at the ends.

H. puniceum has flowers that grow in the umbel at the end of the stalk which has a height of 40-60 cm and stands tall with a pointed tip at the top. The umbel has lanceolate green bracts at its base. Each stalk has one or two ovaries.


Orange-red petal with yellow or pale base. The two lower tepals are much narrower than lateral. About five white stamens emerge from the end of the tube in the middle of the crown.

A single flower will bloom to face north or south with a curved base where the horizontal flower faces are parallel to the ground, while the stems that have two flowers will bloom to face north and others to the south.

Wild barbados lilies grow in forests, yard, roadside and neglected lands. This plant likes sandy, gravel and rocky soil…