2. A bird nest is the spot in which a bird lays and
incubates its eggs and raises its young. Although the
term popularly refers to a specific structure made by
the bird itself
3. For most birds, when a male and female form a
breeding pair nest building activities will follow.
A nest site is first selected and nest building begins.
This can involve both birds as a pair or either sex alone.
Different species of birds build different nests. Some
nests are very simple constructions, whilst others are
more complex.
4. Birds usually only build nests for holding their eggs
and rearing chicks
Birds build nests
To lay their eggs in and keep them safe
To incubate their eggs
To raise their chicks
To protect their eggs and chicks from predators
To protect their eggs and chicks from adverse weather
conditions
5. Nests are built;
in hedges, bushes and trees
directly on the ground
in holes in trees
in reeds by rivers and lakes
in tunnels in riverbanks and cliffs
on cliff ledges
on and in buildings
on ledges and walls
and under the eaves of roofs
in nesting boxes
6. These materials include; •
sticks and twigs
grasses and reeds
leaves
mosses and lichens
seaweed
mud
feathers
bird saliva
fur and hair from other animals
plant down and seed heads from grasses and reeds
cocoon silk and silk from spiders
man-made materials.
7. to construct the nest
to hold it together
for insulation,
to quicken nest incubation
for comfort
to camouflage the nest.
8.
9. The nest is made from stalks of grass.
The stalks have been bent to make the nest.
E.g. Sparrow
10. Some birds are very skilful at weaving nests. They use
grass or reeds to weave complex nests.
The Reed Warbler is a bird that weaves its nest and
attaches it to reed stems.
E.g. Weaver Bird
11. Brood parasites are organisms that rely on others to
raise their young. The strategy appears among birds,
insects and some fish.
E.g. cuckoo bird
Brood parasitism
12. Some birds make very simple flat nests out of
twigs. These nests are called platform nests.
Birds drop sticks and twigs on the top of each other to
make this type of nest.
Large birds such as Rooks,
Magpies and Crows
make these types of nest.
13. Pigeons are well known for building their nests in
unusual places. These places include watering cans,
post boxes and street lights,
godowns, pillars .
14. Some birds, such as Eagles
return to their nests and
re-use them.
The nest of a Golden
Eagle is called an eyrie.
It is made of sticks and
can become very large.
When Eagles return to their
nests to re-use them,
they simply add more sticks to them
15. Some birds like parrots lay
their eggs in the hollow trees.
Eggs are cared and hatched
inside the hollow tree parts.
Young ones are cared and
raised in the same place.
E.g. Parrots
16. A scrape is a very simple type of nest. It is simply a
slight hollow scraped in the ground by a bird using
its feet or its abdomen.
the hollow is lined with grass to provide a cushion
between the ground and the eggs.
Birds that make scrapes include
Oystercatcher, Ringed Plover, Lapwing, Curlew,
Common Tern, Snowy Owl, Red Grouse, and Black
Grouse.
17. lay eggs on lands or either in the nest as depending on
the location.
E.g. Red-wattled lapwing
18. A Kingfisher uses its beak and feet to dig a
tunnel in river bank.
It makes its nest at the end of the tunnel.