birds

The respiratory system of birds has unique structures that cause fresh air to flow into the lungs in only one direction, a capacity that allows them to cope with the large amounts of energy required by flight.

No, these birds have not gone crazy, in fact they may be the most sane at the moment.

The report, prepared by BirdLifeInternational, highlights the critical landscape in which the planet's birds find themselves.

A team of paleontologists from the National Center for Evolutionary Synthesis in Durham in North Carolina (USA) has managed to identify the largest bird that has ever existed on the face of the Earth, according to the study published in the journal Proceedings of the National Academy of Sciences.

No one doubts that nesting birds are magnificent architects, but until now it was thought that their ability was determined by genes and instinct.

Two hundred years after the first Maori settled in New Zealand in the 13th century, nine species of moas disappeared from the islands.

If you want to be a true sex symbol, you better have a body 10 and less brain ... at least if you are a wader. According to a recent study by the Center for Ecological Research and Forest Applications (CREAF), these birds do not choose their mates based on the size of their brains, which would undermine some claims about the evolution of the brain and the sexual selection of the couple.

BirdLife International has just released the "State of the World's Birds", a comprehensive report on the status of the more than 10,000 species of birds in the world. The work compiles contributions from the NGOs from 121 countries that make up BirdLife International, including SEO / BirdLife as a Spanish partner, and was announced during the BirdlLife International World Congress, which is held this week in Ottawa (Canada).