black-capped chickadee poecile atricapillus perched at a water bath in colorado

adaptation alpestris animal anthropogenic atricapillus avian biology bird birding birds birdwatching blackcapped carbon change chickadee climate climatic closeup colorado conservation conservatism distribution ecology emissions environment eremophila extinction fountain gases global greenhouse habitat indicator microevolution migration modeling natural nature niche ornithology outside perched poecile richness science species temperatures threatened tourism warmdwellin warming water wild wildlife