Different types of Birds’ Nests: Part 1

The information on the below posting of the main types of bird’s nests found in India has been compiled primarily from the works of the famous Indian ornithologist and naturalist, Salim Ali:

1. Simple scrapes in the ground sparsely lined with grass and leaves, e.g. quail, jungle fowl and other game birds, or with no semblance of lining, e.g. tern and lapwing. Protections is secured by the eggs and young of such birds through their remarkable obliterative coloration.

Lapwing Nest

2. Twig nests like platforms with a cup-like depression in the centre usual lined with softer material-grass, tow, feathers, etc. This type, built in trees or on buildings or cliffs, is common to a large number of birds of different families, e.g. crow, kite, dove, vulture, cormorant, stork, etc.

Turtle Dove

3. Nests in tree-holes either excavated in living or decayed wood, or in natural hollows and either with a sparse lining of soft material or unlined, e.g. tits, Yellow-throated Sparrow, woodpeckers, barbets, hornbills, owls, some mynas and most of our resident ducks. The holes are in the first instance cut by woodpeckers, parakeets or barbets and subsequently appropriated in rotation by many other species. Nesting in natural tree hollows is a common habit among our resident ducks, all of whom breed during the SW. monsoon. The situation gives security against sudden rise of water level in the jheels due to cloud-bursts or the swelling of streams flowing into them. The ducklings reach the water by tumbling out of the nest and are not carried down by the parents as has sometimes been asserted.

Woodpecker

4. Nests in excavated tunnels in earth-banks or in clefts or buildings, rock cliffs, etc., e.g. bee-eaters, kingfishers, hoopoe. The tunnels are driven horizontally into the side of an earth-cutting or bank of a stream, the bird using its bill to dig and its fee to kick back the loose earth. The tunnels are from a few inches to several feet in length and usually bent near the extremity where they widen into a bulbous egg chamber.

Adult Kingfisher going to Nest

Adult Kingfisher feeding Chicks

5. Nests built entirely of mud or in which mud predominates, e.g. Whistling-Thrust, blackbirds, swallows, martins. The wet mud is commonly collected a r rain puddles. It is mixed with a certain amount of saliva in the case of swallows. There is a marked increase in the size of the salivary glands of these birds and swifts during the breeding season. Swallows’ nests have perforce to be built very gradually, pellet by pellet, so that not too much of the material is daubed on at one time before the underlying layer is sufficiently dry.

Barn Swallows

Cliff Swallows

6. Cup-shaped nests of grass and fibres in crotches or forks of branches, usually well plastered over with cobwebs, e.g. iora, fantail, and other flycatchers, orioles, white-eye minivets, reed warblers, cuckoo-shrikes, etc. Cobwebs are very extensively employed as cement in bird architecture, for binding the material compactly and neatly together. It is collected by being twisted round and round the bill and is then unwound and attached on the exterior of the nest, or used in securing the nest into position.

Iora Adult Feeding Chick

7. Domed or ball-shaped nests of twigs, grass or rootlets with a lateral entrance hole, e.g. munias, Rufous-bellied Babbler.

Munia Nest

8. Pendant nests, e.g. weaver birds (woven), sunbirds, flowerpeckers. The sunbird’s nest is a vertical oblong pouch suspended from the tip of a thin outhanging twig, usually not high above the ground. It has an entrance hole at the side with a little projecting porch over it. The exterior is draped untidily with pieces of bark, caterpillar droppings, and spiders’ egg-cases which give it an effective camouflage. The flowerpecker’s nest is a hanging pouch of the same general pattern, but made entirely of seed and vegetable down worked into a felt-like fabric.

Weaver Bird Making Nest

Weaver Bird Nest Creation System

Hanging Weaver Nests

9. Woven oblong purse; loofah-like—attached to stems of tall grass or low bushes, e.g. prinias (alternative to the next type).

Plain Prinia

 

10. Nest in leaves stitched together in the form of a funnel, e.g. Tailorbird, Franklin’s Prinia, Ashy Prinia.

Funnel Shaped Tailor Bird Nest

Tailor Bird Feeding Chicks in Nest

Baya Weaver

Walking around the partly dried out Samudram Lake, I spotted 3 Baya Weaver nests high up in an inaccessible thorny bush area. The Baya Weaver has been known to nest in trees with a hornet's nest or with the nests of fiercely biting Red Ants, so this bird is careful about protecting its home. Baya Weavers nest in colonies of up to 20-30, usually in trees near freshwater and open ground and is generally found in grassland, cultivated areas, scrub and secondary growths usually near fresh or brackish water.

Baya Weavers eat mainly grass seeds and have large conical beaks to deal with their food. This bird forages in flocks, in grass as well as on the ground and flock flies in close formation, often performing complicated manouvres.

The Baya Weaver's nest is an architectural feat. It hangs from a palm frond or branch and looks like an upside down flask. The general features are a central nesting area with a long tube that leads to a side entrance. This tube makes it difficult even for snakes to enter the nest. Although they look precarious, most nests are very well attached and are impossible to remove without almost destroying the nest. The nests last well through the 3-month breeding season, sometimes even up to a year. After the breeding season, other small birds may roost in the abandoned nests. The nests are made entirely out of strips of grass which the birds collect by cutting a notch in a tall grass, then stripping off a 30-60cm length.

The birds’ breeding season is December-March. At this time, the males put on a brighter costume and they start to build their amazing nests. No stalks or entire grass blades are used. The birds then use their strong beaks to weave and knot the strips of grass. A newly-made nest is green with fresh grass and turns brown as the grass dries. A bird may make up to 500 trips to complete a nest.

The males are promiscuous and try to attract females by building several nests halfway. These half-built "male" nests look like motorcycle helmets complete with chin strap! A female bird first inspects the male's handiwork of a nest before signalling her approval to him. Once a female chooses to mate with him, he might finish the nest. But often, the female completes the nest.

When the female lays and is preoccupied with incubating the eggs, the male abandons her and immediately uses his other half-finished nests to woo a new female. Most males mate with two females, but sometimes three. The males defend his nests from other males. Meanwhile, the female is left to incubate and raise the brood on her own. 3-4 white eggs are laid and the nestlings are fed insects.