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Transcript of Birds
By:Stephanie Gomez &Ruby Maldonado
Birds Reproduction and Development
Birds Body and its Features
Different Types of Birds
When the eggs hatch they are usually about 18 days old.
The baby bird can communicate with its parents when still in the egg to let them know how he is the doing.
Delivering food is something important in parental care
the parents have to make sure that their child eats.
The difference between the different sized birds is that while some of them stop growing the others grow even more.
Reproduction and Development
Feathers help birds to keep warm and they shed twice a week
Bodies are beautifully designed for flight
Strong chest muscles
Curve to their wings provide lift
Not all birds fly
beaks are made of a bony core
surrounded by a thin layer of keratin
no true teeth
many have tomia (sharp ridges along the edges of their beaks)
grid or rip food until able to swallow
beak indicates their diet
Most have light weight skeleton with hollow bones
Collarbones or wishbones, make birds skeletons rigid in comparison to mammals (helps brace the birds' wings during flight)
Breastbones are large, providing sturdy attachment points for powerful wing muscles.
Flightless birds(penguins) have heavy bones filled with marrow helping them to survive in their freezing home range
birds with heavy solid bones in their legs (Ostriches),help the birds run and defend themselves with powerful kicks
Bird evolution features and ancestors
9,700 species of birds alive that inhabit a wide range of habitats including:
coasts and the open ocean.
How Many different kinds of birds are there ?
Throughout the whole world there are over 10,000 various species of birds.
There are big birds, small birds, and medium birds.
They also vary in color there are many different kinds of birds with different colors.
Birds such as hornbills, cranes, weavers, ostriches, emus, swans, and ducks are better off in their natural surroundings and cannot be considered as pets.
What is the basic information about birds ?
Birds mostly eat food that gives them energy like seeds and fruits, insects and other animals, and sometimes nectar.
Many bird parents feed their babies small insects that carries alot of nutrients so the baby can grow even faster.
Another iteresting fact is that the shape and size of bird beaks are adapted to the kinds of food they eat.
The female bird usually lays her egg early in the morning so that she can have time to go hunt for food in the morning or in the afternoon.
Birds take very good care of their eggs the usually lay them in a nest, sometimes it can be simple and sometimes it can be huge and well built to help keep the eggs warm.
A lot of times the body heat of the parent bird is what keeps the egg warm if the parent doesn't warm the egg the embryo developing inside will die.
When the female parent has to go hunt for food and can't warm the egg the male parent takes her place to not let the embryo die.
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