In 1987, biologists captured the last free-flying condor to transfer it to captivity, and the largest flying North American ...

Hundreds of visitors, partners and volunteers recently gathered to witness the release into the wild of four juvenile ...

So you might be tempted to think that they use up comparable amounts of energy. You’d be very wrong. The swan spends around ...

Wildlife photographer and ornithologist Tim Laman shares his advice for getting started—right in your own backyard.

A landmark study of 50 wild bird and bat species shows that riding atmospheric flows can make flying cheaper than swimming, ...

New research shows how wind and rising air can make flying more efficient than swimming, challenging long-held scientific assumptions. Textbooks rank the ways animals get around by cost: swimming is ...

Two birds can weigh the same, about 11 kilograms each, and still live in entirely different energy economies. An Andean ...

The largest study yet to examine flight costs in wild birds finds that riding the air can make flying energetically cheaper ...

The largest study yet to examine flight costs in wild birds finds that riding the air can make flying energetically cheaper ...

An Andean condor and a trumpeter swan both weigh about 11 kilograms. Yet the condor covers each kilometer of flight for about a fifth of the swan's ...

A major international study involving Swansea University has overturned a longstanding textbook view of how much energy ...

A study of bird and bats in the wild showed that once the atmosphere is taken into account, flying can be the cheapest form ...