Human Trash Has Caused Chick Deaths in California Condors

Bottle caps and shards have killed chicks inside cliff nests.

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Wildlife crews sometimes clean nesting areas before breeding season to reduce trash risks.

In some reintroduction areas, adult condors have collected small pieces of trash such as glass, plastic, and metal. These objects are sometimes fed inadvertently to chicks. Because condors swallow food whole, indigestible debris can accumulate in a chick's digestive tract. This condition, known as impaction, can lead to starvation or internal injury. Biologists have had to remove trash manually from nests to prevent mortality. The problem reflects the overlap between human recreation and condor habitat. Even tiny fragments can threaten an already fragile population.

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The scale contrast is stark: a massive bird reduced by something as small as a bottle cap. Chicks depend entirely on parental provisioning and cannot reject contaminated food. Monitoring teams must sometimes rappel down cliffs to intervene. Each rescue operation carries risk and requires extensive coordination. Preventing litter near nesting territories has become part of conservation strategy.

Trash ingestion reveals how deeply human materials permeate even remote ecosystems. A species that survived Ice Age transitions now faces hazards created by modern waste. The condor's survival depends not only on hunting regulations but also on basic environmental stewardship. Small, discarded objects can ripple upward to threaten one of North America's largest birds. The crisis illustrates how extinction pressures operate at both microscopic and continental scales simultaneously.

Source

U.S. Fish and Wildlife Service

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