Birds are very choosy and prefer to nest in a specific way. This is evolutionary and developed over many thousands of years. The main purpose is to find a safe place for the bird to lay eggs, incubate and raise their brood in relative safety. Nest types are generally organised by style.
These are very messy but very impressive nests. Often made of mud and built against a surface like a tree, wall or cliff. They come in a range of sizes and shapes. Some are conical, some are round and 'v' shaped depending on the bird type. The nest is often built up over time using mud or dirt added in layers and dried between application to form a nice shape.
Yes there are nest underwater too. Normally these are built up with sticks and debris. Some nests are anchored, some are floating, some in shallow or deep water. These are very impressive nests and are mainly to reduce the risk of predators.
Some birds find comfort in nesting underground. They use their beaks to burrow deep down into cliff or ground. They can build a chamber off the tunnel to create a safe place to raise their brood.
These are nests inside trees. Many species choose a cavity, but rely on other species or nature to create the cavity for them. Being in the heart of their habitat, they are able to raise their brood easily. Bird boxes or nest box mimic the cavity.
These are often made by birds who make nests from grasses, twigs and mud. They are often sited in the V of a tree allowing the bird to feel safe and secure.
Similar to a cup but a little bit bigger and deeper. Often birds build a small entrance hole.
This is often just a heap of twigs and vegetation. The bird pile up debris to a mound and lay their eggs inside the mound. This helps protect and keep the eggs warm.
These are like the name implies, a swinging hanging nest. The nest is a cup, spherical or a sack and are often woven from fine grasses. The birds often spend hours building the nests and can turn into works of art.
This is a shallow cup made of foliage or mud. A plate is often good for birds who like to build high up and with very little broods.
This is often a huge nest for bigger birds. It is a great way to keep larger eggs or broods safe from falling dizzy heights.
A scrape is a nest that is a very shallow depression. The nests are often lined with grasses, feathers or moss and are just shaped enough to stop eggs from rolling away. The shape is determined by the bird bodies or just by stamping around until the desired shape is formed.
There are so many nest types with various specie of birds choosing various ways and techniques to build nests. Most nests are built every year and some are occupied over many years. By allowing nesting sites, bird numbers can increase and more we can all enjoy them.
Wikipedia - Bird nests
BTO - Bird information
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