Two regular spring migrants and summer inhabitants familiar to most people are the Ruby-throated Hummingbird and the Baltimore Oriole. They both tend to arrive at our latitude during the first ten days of May, but sometimes earlier. There are about 320 species of hummingbirds worldwide, with about 20 normally found in North America and almost half of those have been re-corded in Ontario. However, only the Ruby-throated normally breeds in our area.
