T R OM S
F I N NMA R K
M i g r a t o r y b i r d s b y t h e n u m b e r s
THE BIGGEST
THE LONGEST FLYERS
Arctic tern
(Sterna paradisea)
Eurasian oystercatcher
(Haematopus ostralegus)
Snow bunting
(Plectrophenax nivalis)
Greylag goose
(Anser anser)
Willow warbler
(Phylloscopus trochilus)
The arctic tern flies the farthest,
from the Arctic to the Antarctic and
back again, which is roughly 70 000
km round trip. This species
experiences the most daylight of
all bird species.
THE FIRST ARRIVALS
Trekkfuglene kommer vanligvis i midten av mars.
Siden midten av 1990-tallet ser det ut som om
trekkfuglene har kommet ca 14 dager tidligere.
The largest migratory bird that spends the
summer in northern Norway is the greylag
goose. It weighs between 3-5 kg and has a
wingspan of 150-180 cm. Many overwinter in
Spain and the Netherlands.
The smallest migratory bird is the willow warbler.
It weighs 10-15 grams. The willow warbler
overwinters in tropical Africa, and must therefore
cross the Sahara Desert and the Mediterranean
Sea twice a year.
THE SMALLEST POPULATION
The lesser white-fronted goose (Anser
erythopuser) has the smallest population. It has
been given the status of "directly threatened" on
the official Norwegian Red List by the Norwegian
Directorate for Nature Management. Fifteen to
20 pairs nest in desolate mountain areas in
northern Norway, and overwinter in
southeastern Europe.
THE LARGEST POPULATION
The most numerous migratory bird species
is probably the willow warbler, with perhaps
as many as 10 million (or a minimum of 2
million) nesting pairs. They nest in
deciduous forests across all of Norway.
THE SMALLEST
The first species to arrive are generally Eurasian
oystercatchers, common gulls, snow buntings
and starlings.
Starling
(Sturnus vulgaris)
Common gull
(Larus canus)
51
labyrint
•
research magazine
from
u
i
t
the
arctic
university
of
norway
