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Dieren en planten

Fish   Birds   Divers   Red-throated diver   Bird Protection   Marine fauna   Sea fish   Seabirds   Oil victims   Freshwater fish   Swimming birds   

Water en land

Red-throated diver

size:

53-69 centimeters; 106-116 centimeters wingspan

color (adults):

summer - red throat patch, dark mantle, grey head and neck, white belly; black bill; red eyes;
winter - mainly grey-white

food:

fish, crustaceans, snails, amphibians

threats:

mankind due to oil spills, loss of or degrading habitat, fishing nets, mercury pollution

Dutch status:

migratory and winter guest

habitat

nests within half meter from small pond edge

reproduction:

2 eggs; maturity: 2 years

life span:

unknown (maximum known age: +23.5 years)

winter home:

North Sea and further south

  • Dut: Roodkeelduiker
  • Eng: Red-throated Diver
  • Fren: Plongeon catmarin
  • Ger: Sterntaucher
  • Dan: RÝdstrubet Lom
  • Nor: Smilom
  • Frisian: Lytse Sťdķker
  • Ital: Strolaga minore
  • Lat: Gavia stellata
Red-throated diver, Foto Fitis, www.fotofitis.nl

Red-throated diver

Because red-throated divers lie deep in the water, only their dark grey back of their body is visible. With their short webbed feet located close to their tail end, they are terrific swimmers and divers, catching and consuming their prey underwater. Only larger prey are carried to the surface. This bird was used for predicting the weather on the Shetlands: flying inland or short cries meant good weather; flying to sea or long cries predicted wet weather.

  • Oil birds

    Red-throated divers are very sensitive to oil pollution. An oiled bird has no chance to survive, even after treatment in a rehabilitation center.

  • Distribution of divers in the North Sea area
    Distribution of divers, North Sea area, Ecomare

    Red-throated divers breed in the vicinity of ponds and inland lakes in Iceland, Greenland, Scotland and Scandinavia. After nesting season, they migrate in September to the North Sea to overwinter. Large numbers of red-throated divers are then found along the coast of the Netherlands, Germany and Denmark. Smaller numbers can be found along the British coast. In April, the birds return to their nesting grounds.

  • Protection
    • Monitoring: Network Ecological Monitoring
    • Policy: Target Species List
    • National legislation: Flora and Fauna Regulation
    • European Agreement: Bird Directive
    • International: Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), Bern Convention, Bonn Convention