a juvenile migratory common black hawk buteogallus anthracinus hunting from rocks

accipitridae adaptation alpestris animal anthracinus avian biology bird birding birds birdwatching black buteo buteogallus carbon change climate climatic closeup colorado common conservation ecology environment eremophila extinction gases global greenhouse habitat hawk hunting indicator juvenile migration migratory natural nature niche ornithology outside perched prey raptor richness science species temperatures threatened tourism warmdwelling warming wild wildlife