Hummingbirds are sensitive to temperature changes that affect their migration timing. 

Warmer spring temperatures can cause them to arrive too early, disrupting their food sources. 

Changing flower blooming schedules may lead to a mismatch in available nectar. 

Changing flower blooming schedules may lead to a mismatch in available nectar. 

Altered migration patterns may lead to increased competition for food in new areas. 

Climate change can affect breeding habitats, influencing the survival rates of young birds. 

Conservation efforts are needed to address the impacts of climate change on these birds' journeys.