Adult white-chinned petrel (Procellaria aequinoctialis), off Kaikoura, South Island, New Zealand, Pacific

Two Orange-chinned Parakeets (Brotogeris jugularis) sitting on a branch, Costa Rica

Two Orange-chinned Parakeets (Brotogeris jugularis) quarreling, Costa Rica

Orange Chinned Parakeet (Brotogeris Jugularis), Boca Tapada, Alajuela Province, Costa Rica, Central America

Orange chinned Parakeet (Brotogeris Jugularis), Boca Tapada, Alajuela Province, Costa Rica, Central America

Black-chinned hummingbird (Archilochus alexandri), Sweetwater Wetlands, Tucson, Arizona, United States of America, North America

Male black-chinned hummingbird (Archilochus alexandri), Sweetwater Wetlands, Tucson, Arizona, United States of America, North America

An adult female black-chinned hummingbird (Arcgilochus alexandri), Madera Canyon, southern Arizona, Arizona, United States of America, North America

An adult female black-chinned hummingbird (Arcgilochus alexandri), Madera Canyon, southern Arizona, Arizona, United States of America, North America

Black-chinned Hummingbird (Archilochus alexandri), females feeding on Texas thistle (Cirsium texanum), Sinton, Corpus Christi, Coastal Bend, Texas, USA

Black-chinned Hummingbird (Archilochus alexandri), female feeding on Yellow Trumpet Flower (Tecoma stans), Tucson, Sonoran Desert, Arizona, USA

Black-chinned Hummingbird (Archilochus alexandri), male in flight feeding on Mexican Oregano (Poliomintha maderensis), Miller Canyon, Tucson, Arizona, USA

Black-chinned Hummingbird (Archilochus alexandri), female feeding on flower, Tucson, Sonoran Desert, Arizona, USA

Black-chinned Hummingbird (Archilochus alexandri), female in flight feeding on Sage, Madera Canyon, Arizona, USA