Climate Change

"Climate change is killing penguin chicks from the world's largest colony of Magellanic penguins, not just indirectly -- by depriving them of food, as has been repeatedly documented for these and other seabirds -- but directly as a result of drenching rainstorms and, at other times, heat, according to new findings from the University of Washington."

The temperatures directly affect baby penguins survival rate. If the temperatures are too low, the baby penguins risk getting wet and dying from hypothermia because they do not have their waterproof feathers just yet. Also due to the temperature changes, penguins are breeding later in the season and by the the time chicks are hatched, it is not the perfect conditions for their maximum chance of survival. 

http://www.sciencedaily.com/releases/2014/01/140129184826.htm