bird populations

Some sparrows sitting in a tree

Inbreeding detrimental for survival

Inbred birds don’t live as long and have fewer offspring than non-inbred birds. Inbreeding is equally harmful regardless of where the birds live.

Stress in the nest can have lifelong effect

Why do some sparrows hatch six chicks while others don’t hatch any? How does upbringing affect the remainder of their lives? Physiological stress in the nest can actually affect birds’ DNA and possibly their lifespan.

Havørnas største trussel i dag er roterende vindturbinblader.

Five kilometres between life and death

DNA profiles of the sea eagle population from a large island in mid-Norway are providing new and useful information as to how the birds avoid being killed by wind turbines.