Birds by Steven

            

This week in Biology we are researching an animal class so I chose the bird class. Birds actually have evolved from Theropods and the evidence is that Theropods had wings and feathers. Birds today have more oxygen in their blood than most animals because of their four chambered hearts. Birds are also good for the environment because they spread the seeds of various plants and they pollinate some plants. Birds don’t live in subarctic and subantarctic areas. Most species of birds are in Tropical or Subtropical Lowlands. This is because birds like to live in warm areas. 

Birds don’t just find another bird to breed with they actually find the right bird for them. They do this by courting which is a dance. One bird does some kind of action and the other has to copy it. When they do this it creates a bond between them. Now they’ve found their partner. Once they breed the female heats the eggs. 

Then the birds split up during the winter and go to warmer areas or breeding areas. These are just some of the things that I’ve learned this week in Biology. But there is something I’ve been wandering about. Are there any birds that don’t migrate to warmer areas during the winter and just stay in the same place all year long? (Not including flightless birds.)