These are my thoughts for finalizing your summary
Many bird migration regularly which fascinating observerwhere is your main verb? Mr. Bams, you are supposed to remember that each sentence has to have one main verb.
Types of migration are different each other, many bird ...
This is messy enough. You have to keep the meaning of original resource.
THERE ARE TWO DIFFERENT TYPES OF THE MIGRATION, THE TIME FOR BREEDING AND FEEDING NESTLINGS.
Avoid repetition. For MANY, you can use (a large number of, a great number of, plenty of ). Make it variation.Bams, you should review more and more your summary before you upload to make what you mind is what you mind. Sometimes, I cannot get the point of your summary