Sunbird, The Nesting

Nesting Season of Sunbird varies from February to June.Both the Purple and purple-rumped Sunbird has similar nesting behavior.I have discussed in detail how they build their nest in my post " Sunbird, The nest". The female generally lays 2 to 3 eggs of grayish color with brown spots.The female incubates the egg for a period of about two weeks.The young birds are fed by both the parents.The chicks feed almost 3 times more than their body weight.It is my personal observation that both the parent visit the nest almost 40 times in an hour to feed the chicks. Fledging period is almost 12 days.It is a great pleasure to watch the chicks coming out of the nest and jumping from branch to branch and the parents following them.

Purple Sunbird

Image via Wikipedia

Purple Sunbird
Species : Nectarinia asiatica
Family : Nectarinidae
Size : Smaller than sparrow

This is another species of Sunbird commonly found in Asiatic region.The only difference here is the color of the male. The breeding male is metallic black with a smooth shiny surface which ranges from green to purple . An orange patch is found on the armpit.Female are same are olive above and yellowish below. In both the species i.e purple sunbird and purple rumped sunbird the females look similar.For more information please read my post " The Purple Rumped Sunbird".

Sunbird, The Nest

Fig. The female Sunbird building the Nest

The nest of sunbirds are architectural marvel. It is generally suspended from a branch at a height of around 10ft from ground. It looks like an oval or oblong purse-shaped pouch with a hooded side-entrance.The collection of nest material and nest building are performed by the female alone with the male only accompanying the female.Before building the nest both male and female first select the appropriate branch of a tree.The female hover around it for a inspection and one can easily confused it with a humming bird. The nest materials consists of soft grasses, dry leaves, barks, pieces of paper and cobwebs.Cobwebs are generally used as a glue material. The nest is about 300 to 600 mm long from tail to tip.The diameter is around 50 to 70 mm at the broadest part.The outer layer consists of coarse materials like dried leaves, barks and even paper and polythene pieces.The inner layers consists of finer materials like cotton fibres or silky substances of seeds and flowers.The nest I observed mostly. The interior of the nest contains the egg chamber which is the thickest portion of the nest i.e 30mm thick.The interior gives utmost comfort to the chicks to grow.On a an average a nest is built with in 10 to 15 days.

Sunbird

Fig. This is a purple rumped sunbird

Sunbirds are colourful, attractive small passerine birds. and readily enter gardens where flowering plants are planted to attract them. The sunbirds and spiderhunters belongs to family Nectariniidae. The family is distributed throughout Africa, southern Asia and northern Australia.The sunbirds have two close relatives, the hummingbirds of the Americas and the honeyeaters of Australia. The resemblances are due to similar nectar-feeding lifestyle.There are more than 100 species of sunbird in 15 genera.Two most common species seen in India are Purple Sunbird (Nectarinia asiatica) and Purple-rumped Sunbird (Nectarinia zeylonica).When one sees them feeding nectar on flight can easily be confused it as Humming bird.However we have no Humming birds here in India.Sunbirds are frequent visitors to gardens where flowering plants are present.They also built their nest in backyard gardens .