Passing of the Penguin?

It has been reported (http://www.guardian.co.uk/environment/2009/feb/12/penguins-food-under-threat) that the large Megallanic penguin colony at Punto Tombo (Argentina) is under serious threat. The colony has declined by about 20% in the last 20+ years. One extra pressure is that the birds now have to add an additional 50 miles to the round trips they make from their nest sites to obtain small fish for their mate and its developing chick. All 3 partners suffer and this, perhaps, accounts for some of the increased mortality, as well as the fact that some birds appear to be relocating. The author of the study (Dr Dee Boersma) blames humans for taking stocks of small fish.