Moerasvogels

For many people in Hong Kong, talk of endangered species conjures up images of wildlife whose natural habitats are “out there”, somewhere far away – such as giant pandas in the bamboo forests of Sichuan province, polar bears in the Arctic and miniature monkeys in the Brazilian rainforest. If, like me, you are a birdwatcher, however, the list of threatened species feels far closer to home.

The haunting cry of the curlew (Numenius arquata) has long been embedded in Irish literary culture as well as in individual memory. Yet, with the breeding population dropping by a staggering 96 per cent since the 1980s, we are left to wonder whether Ireland’s future generations will have any more than these tales to rely on when learning about this iconic bird.

Im Kanton Zug haben sich die Brutvögel in den Naturschutzgebieten während der letzten vier Jahrzehnte unterschiedlich entwickelt. Am meisten unter Druck gekommen sind die Vögel der Moore. So ist der Kiebitz vom Aussterben bedroht. Sein Bestand ging von zehn Paaren auf ein einziges zurück. Eine mehrheitlich negative Entwicklung ist auch bei den Vögeln der Nadelwälder zu beobachten, wie die Direktion des Innern am Dienstag mitteilte. Dies zeigen Daten, die zwischen 1979 und 2016 erhoben wurden.

In his book, Dutch toxicologist Henk Tennekes (2010) makes the case that the contamination of surface water by neonicotinoids is so widespread in the Netherlands (and possibly elsewhere in Europe), that loss of insect biomass on a continental scale is behind many of the widespread declines that are being seen, be they of marsh birds, heath or meadow birds or even coastal species. This suggests that we should be looking at possible links between neonicotinoid insecticides and birds, not on a farm scale, but in the context of whole watersheds and regions.

Results from long-term monitoring efforts show that Black Tern (Chlidonias niger) population declines in the Klamath Basin are higher than declines previously documented for continental and regional populations. Results from a 10 year study conducted by Klamath Bird Observatory show a steady, sharp decline in numbers of Black Terns in the wetlands and open waters of Agency Lake and Upper Klamath Lake. According to a Black Tern conservation plan created in 2006, the desired population objective within the Great Basin — which includes the Klamath Basin — is 10,000 individuals.

The hen harrier (Circus cyaneus), an iconic bird of prey, is heading towards the brink of extinction in England, new figures suggest. There are just four breeding pairs left in England and numbers are declining elsewhere in the UK. Scotland is the traditional stronghold of these raptors, but numbers have fallen 9% since 2010. Numbers in England fell from twelve pairs in 2010 to just four in 2016.

New research has found a dramatic decline in water birds in the Murray-Darling Basin, with numbers down about 70 per cent in the past three decades. A University of New South Wales team found the alarming drop after crunching 32 years of data. The study has been published today in the Global Change Biology journal. Director of the UNSW Centre for Ecosystem Science, Richard Kingsford, who surveys up to 2,000 wetlands around Australia annually, headed up the research.

The mighty Brahmaputra and its tributaries serve as the winter visiting ground to many migratory birds. From the marshes of Kaziranga to the forests of Eaglenest in western Arunachal and further up to the alpine areas of Arunachal -- one come across more than 750 species of birds that includes most of the winter visitors. Assam, along with the other six northeastern states, shares a common migration route for many of the avifauna that flies over Bhutan, Tibet, China, Myanmar and Bangladesh.