Maybe They Decided to Move

Scientists discovered a super-colony of penguins. According to the article, the scientist are surprised by this, since this species appeared to be dwindling where previously studied.  Penguin crap covered rocks exposed by satellite imagery led them to the colony.

I wonder if the reason the penguins were dwindling is because they were moving away from the helicopters, motorized vehicles, constant dabbling by humans, and the fact humans are sometimes not very good neighbors?

Since penguins can't talk, and scientists will justify their meddling, the answer may never be known.