# Penguin Colony Loses Two-Thirds of Nests

> Antarctic chinstrap penguins lost nearly two-thirds of nests since 2011 due to ocean warming.
- Title: Penguin Colony Loses Two-Thirds of Nests · MercoPress
- Summary: Antarctic chinstrap penguins lost nearly two-thirds of nests since 2011 due to ocean warming. Zavodovski Island's chinstrap penguin colony lost 63% of nests…
- Keywords: chinstrap penguin, zavodovski island, antarctica, ocean warming, krill, penguin colony, news, world, politics, Penguin, Colony, Loses
- Source: MercoPress — https://en.mercopress.com/2026/10/08/what-was-the-world-s-largest-penguin-colony-has-lost-nearly-two-thirds-of-its-nests
- Read time: 1 min
- Topics: chinstrap penguin, zavodovski island, antarctica, ocean warming, krill, penguin colony, news, world, politics
## Zavodovski Island
The world's largest penguin colony lost its title after a study found 63% fewer occupied nests since 2011.

> The island, described that year as the world's largest penguin colony, has lost that title.
## Ocean Warming Cause
Researchers attribute the decline to ocean warming shifting krill populations southwards, preventing penguins from following food.

> With waters warming, the krill the chinstrap penguins eat have moved southwards.
## Penguin Population Shift
Chinstrap penguins may now be officially endangered as macaroni penguins increased due to warmer foraging waters.

> The researchers believe the species may now qualify as officially endangered.
## Key takeaway

Zavodovski Island's chinstrap penguin colony lost 63% of nests since 2011 as ocean warming shifts krill populations.