I hope this is the correct spot to ask this.
I am new at trying to identify birds and I enjoy using the search here. Most often the birds I see are outside the window and I have a hard time guesstimating their size. Most often we get sparrows at our feeders. I would like to try and ID them all. Would you say they are Very Small or Small birds? Maybe this would help me some, if I can get the right size to start with. Also, what kind of birds would be considered small? The picture used for medium is a duck and this seems quite a jump from the smaller birds.