Watervogels

The Numeniini bird family faces extinction

For Numeniini, a family of birds that includes Curlews and Godwits, new research indicates that these birds are at risk. A recent study by Royal Society for the Preservation of Birds (BirdLife in the UK), British Trust for Ornithology (BTO), and the International Wader Study Group suggests they could actually be one of the most threatened families of birds on earth. The study consulted over 100 experts who assessed the threats to Numeniini throughout their migratory regions and found that seven of the thirteen species are threatened with extinction.

Kordate kleine zwaan minder gezien op winterakkers

Nog niet zo lang geleden overwinterden in Nederland 10.000 kleine zwanen, ongeveer de helft van de wereldpopulatie. Vorig jaar telden vrijwilligers tijdens de maandelijkse ganzen- en zwanentellingen 5500 kleine zwanen. Naar verwachting ligt het aantal in 2017 nog lager. Kleine zwanen fourageren vaak samen met wilde zwanen. Kleine zwanen (Cygnus columbianus bewickii) broeden op de toendra's van Noord-Siberië en op de eilanden in de Barentszzee, waaronder Nova Zembla. Sneeuwval en vorst dwingen de witte vogels in de herfst naar het zuiden te trekken.

Assam's white-winged wood duck is threatened

“I am Assam’s State bird Deo hah. My current status is threatened. Please do not kill us, nor collect our ducklings or eggs” – reads a new campaign poster of wildlife NGO Aaranyak, starkly describing the current status of the State bird, the white-winged wood duck (Asarcornis scutulata). As the rhino continues to be the focus of wildlife conservation in the State, the numbers of the white-winged wood duck are dwindling slowly and silently with little or no attention coming from the State Government.

South Florida wading bird nesting falls to lowest level in a decade

The number of nesting wading birds in South Florida, a key measure of Everglades health, sunk to a decade-long low last year, according to a South Florida Water Management District report released this week, the latest in a 22-year tally. Just over 26,000 nesting birds were counted across the Everglades and in Lake Okeechobee last year, well below the 10-year annual average of about 42,000.

Pollution of Vembanad Lake

Pesticide residue from rice polders and nutrient discharge from urban settlements are aggravating the pollution of Vembanad Lake, playing havoc with the fragile wetland ecosystem and jeopardising its tourism potential. A study conducted by the Regional Agricultural Research Station (RARS), Kumarakom, under Kerala Agricultural University (KAU), has reported a high level of eutrophication of the lake, a Ramsar site and the hub of backwater tourism in Kerala. Data collected by the environmental surveillance centre at RARS indicate that the organic pollution of the lake is getting worse.

Waterbirds in Myanmar's Irrawddy River declined by up to 90% over the last 14 years

Over the last 14 years, waterbirds in Myanmar's Irrawddy River declined by 60% to 90% depending on the species. Scientists working for Fauna & Flora International (FFI) and Manfred Hermsen Foundation have repeated an ornithology survey of the Myitkyina to Mandalay stretch of the Irrawaddy River last carried out in 2003. They found that many waterbirds have declined sharply. More than 20,000 waterbirds (61 species) were recorded along the river, with small pratincole (Glareola lactea) and ruddy shelduck (Tadorna ferruginea) the most numerous recorded.

Zelfs waterhoentjes krijgen in Nederland last van insectenschaarste

Vanaf december 2012 tot de zomer van 2015 werd in het kader van een atlasproject de vogelstand in Nederland opnieuw in kaart gebracht. Het bleek helemaal niet zo goed te gaan met het waterhoen (Gallinula chloropus), een van de algemenere vogels van ons land en een soort die je zelfs in veel sloten en stadsvijvers aantreft. Veel tellers bleken desondanks opvallend veel moeite te hebben om waterhoentjes te vinden. Het waterhoen voedt zich met waterplanten, grassen, insecten en kikkervisjes.

Veel broedvogels van de toendra gaan achteruit

Van de 263 onderzochte vogelsoorten die Nederland aandoen als doortrekker of wintergast zijn er 39 op de nieuwe ‘Rode Lijst’ van bedreigde vogels terecht gekomen en negen op de oranje lijst. De oranje lijst is een lijst van vogels die de afgelopen tien jaar constant in aantal zijn afgenomen en dus ook in de gevarenzone dreigen te komen. Van de wintergasten en doortrekkers die in ons land achteruit zijn gegaan, broeden er zo’n dertien op de toendra.

The survival of the White-bellied heron greatly depends on the existence of their wetland habitat

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.

Fewer birds seen in Mindoro Lake in the Philippines

Fewer migratory birds visited the Naujan Lake National Park in Naujan town in Oriental Mindoro province last month, a recent bird census showed. From 10,821 birds recorded in 2016, only 6,932 from 36 species were recorded during the survey held last month by the NLNP-Asian Waterbird Census (AWC) team. “The cause of this decline is not yet clear but it could be due to several factors, including the unfavorable weather conditions over the past weeks,” Don Geoff Tabaranza, project development and resource manager of the Mindoro Biodiversity Conservation Foundation Inc.