Category: Digest

This is our digest which contains articles and YouTube videos.

Island Scrub-Jay: Unique Endemic

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This YouTube video was produced by the American Bird Conservancy.

The Island Scrub-Jay(Aphelocoma insularis) holds a unique title: the only island endemic bird species of mainland North America. Once part of the species known simply as Scrub Jay which was split into separate species in 1998, the Island Scrub-Jay is noticeably larger and more brightly-colored than its near relatives, including the Florida Scrub-Jay(Aphelocoma coerulescens). Fossil remains suggest that it probably diverged from its closest relative, the California Scrub-Jay(Aphelocoma californica), about 150,000 years ago.

Like other species endemic to islands, such as Darwin’s famous finches and birds of the … Continue

Bird-Safe Glass Testing Tunnel Process

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This YouTube video was produced by The Cornell Lab Of Ornithology.

Visit our website to learn how you can treat glass at your home or commercial building to help protect birds: https://www.stopbirdcollisions.org/

Each year, over a billion birds die after colliding with glass they can’t see. But what if we could change that? In this video, we take you inside a specialized flight tunnel at Western University in London, Ontario, where researchers are testing window treatments designed to make glass visible to birds. Using live birds in carefully controlled experiments, the team evaluates which glass markers are most effective … Continue