With orchard fruit trees coming into bloom, we should be seeing the Baltimore (Northern) Orioles any day now. Our hummingbird feeders have been out for a month, in anticipation of the earliest hummingbird scouts, and last year the orioles drank freely the sugar-water provided for the Ruby-throated Hummingbirds. Sugar-water recipe for orioles and hummingbirds: 1/4 cup granulated sugar to 1 Cup warm water. Stir to dissolve the sugar.  Wash feeders in hot soapy water, with white vinegar added, and replace sugar-water on a twice weekly schedule, to prevent mold.