Of the 1,189 species assessed, the researchers found one in five are threatened with extinction. For some species the situation is much worse - 97% of fish listed under the convention are at risk.
Amy Fraenkel, the UN Executive Secretary to the convention, told the BBC: "There has been a lack of attention for migratory species and if we don't succeed in turning this around, we will see extinction. There are species that are already on the edge".
Migrating species crucial to planet under threat, says UN
https://www.bbc.co.uk/news/science-environment-68254027
Here in South Essex the bird populations have been devastated in terms of diversity. We live in a road that provides a total back garden space of about 200m x 50m with well established shrubs, trees and lawns and my neighbours garden is pretty much rewilded. (unoccupied for four years) plus a nearby woods.
Yet we have, in the last three years lost chaffinches, Greenfinches, Jays and long tailed tits completely. Wrens are much rarer which is surprising given next door's and other nearby habitats. Goldfinches are less common and blackbirds are more a winter visitor than a nesting bird. Bluetits have failed for three consecutive years now although they are common on our and others' feeders. So the main visitors are House Sparrows(most abundant species), Blue Tits, Great Tits, Starlings, Wood Pigeons, (record numbers), Collared Doves, Robin, Dunnock ,Magpies, Carrion crows and the occasional Sparrowhawk, Song Thrush and Great Spotted Woodpecker.
Also this year we have seen a Blackcap, a Goldcrest and a Chiffchaff .
In the wider local area Bullfinches and Yellowhammers have completely gone with none being seen in the last couple of years.