Costa's Hummingbird A small, a mature adult growing to only 3–3.5", mainly green back & flanks, small black tail & wings, patches of white below gorgeted throat & tail; vibrant purple cap/throat feathers flaring out & back behind its head; females: grayish-green above, white underbelly. Desert hummingbird, breeds in the Sonoran & Mojave Deserts of CA & AZ. In the hottest days of summer, moving to chaparral, scrub, or woodland habitat.
You can fill a feeder with simple sugar syrup – but never use honey, brown sugar, artificial sweeteners or food colourings. To mix your own syrup, mix one-quarter to one-third cup of granulated sugar with one cup of water. Bring to boil and let cool before filling your feeder. The more feeders you provide, the happier hummingbirds will be!
Please, do not put honey, Jell-O, brown sugar, fruit, or red food coloring in your feeder! Honey ferments rapidly when diluted with water and can cause mouth sores and even kill hummingbirds. The red dye has NO beneficial ingredients, and it is not necessary to color the water to attract birds to your feeder. Further, there are unverified reports that red dye can cause tumors in hummers.