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Why Animals in Cold Climates Are Bigger: The Science Behind Bergmann’s Rule (featuring an interview with Bob Mulvihill) | A-Z Animals

“Large animals can conserve heat more efficiently than smaller animals in cold climates,” explains Bob Mulvihill, Lead Ornithologist for the National Aviary.

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Penguins To Hold ‘Penguins Pledge Night’ Presented by U. S. Steel | Pittsburgh Penguins

The Penguins Pledge will also raise funds and call attention to the National Aviary in Pittsburgh and their conservation leadership with African Penguins.

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Record Number of Peregrine Falcons Counted in Allegheny County | National Today

Conservation efforts have helped the raptor species rebound in the region.

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Why Are There No Birds in My Birdhouse? I Asked Expert Bob Mulvihill Who Told Me How to Attract Birds to Any Birdhouse | Gardening Know How

To help ensure your birdhouses are as appealing to birds as possible, [we] asked a National Aviary Ornithologist Bob Mulvihill for the most common reasons why houses remain vacant and how to make houses more attractive to garden birds.

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Peregrine falcons to be protected during Tarentum Bridge construction project | TribLive

Peregrine falcons that nest under the Tarentum Bridge will be protected as best they can during an upcoming, long-term construction project along the span.

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