How big is the bird population? | AMNH - American Museum of . . . The world's bird population is definitely decreasing Since the 1500s, birds have been declining both in terms of species numbers (by about 500 species) and numbers of individuals (by about 20-25%) This decline is due to human activities, such as the cutting down of forests, contamination, invasive species , and human-induced climate change
Species Extinction Rate Hundreds of Times Higher Than in Past . . . Species Extinction Rate Hundreds of Times Higher Than in Past 10 Million Years, Warns Secretary-General Observance Message, Urging Action to End Biodiversity Loss by 2030 To achieve a sustainable future for all, we need to act urgently to protect biodiversity, the web of life that connects and supports us all
Humans have driven more than 1,400 bird species to extinction . . . Since humans began to spread across the world, they have caused the extinction of more than 1,400 species of birds The new figure — published on Tuesday in the journal Nature Communications — is double previous estimates The equivalent of 12% of all bird species that exist today have disappeared
From Avocet to Zebra Finch: big data study finds more than 50 . . . There are roughly 50 billion individual birds in the world, a new big data study by UNSW Sydney suggests – about six birds for every human on the planet The study – which bases its findings on citizen science observations and detailed algorithms – estimates how many birds belong to 9700 different bird species, including flightless birds like emus and penguins
Number of described species - Our World in Data Countries with more than 25 species at risk of losing more than 25% of their habitat by 2050; Cumulative first records of alien species; Day of the year with peak cherry tree blossom in Kyoto, Japan; Drivers of recovery in European bird populations; Endemic amphibian species; Endemic bird species; Endemic freshwater crab species; Endemic mammal