Siemianówka Lake

It is an artificial lake created in the upper stream of Narew River. Western part of the lake is deeper, eastern more shallow and, behind the train embankment – swampy.



Birds of open water reservoirs, open river valleys, of flooded, polder areas and of reed beds.

Species in the vicinity of the lake:

– interesting migratory species: whooper swan and Bewick’s swan, lesser white-fronted goose and pink-footed goose, ferruginous duck, scaup, velvet scoter, common scoter, long-tailed duck, smew, red-breasted merganser, red-throated and black-throated divers, black-necked grebe, pomarine skua, Arctic skua, night heron (from time to time), little egret,  purple heron, osprey, short-toed eagle, pallid and hen harriers, red-footed falcon, peregrine falcon, merlin, turnstone, sanderling, knot, dunlin, curlew sandpiper, broad-billed sandpiper, little and Temminck’s stint, spotted redshank, marsh sandpiper, bar-tailed godwit, Jack snipe, terek sandpiper (rarely), black-winged stilt, red-necked phalarope, grey phalarope (very rarely), whimbrel, ruff, Caspian tern, little gull, lesser black-backed gull, kittiwake.





– interesting breeding species: corncrake, little bittern, white-tailed eagle, spotted eagle (mixed couples), little, white-winged and whiskered terns, little crake, crane, greylag goose, great snipe, eagle owl, pygmy owl (along the banks), short-eared owl, kingfisher, citrine wagtail, aquatic warbler, bee-eater (not every year), roller and  lesser grey shrike (until recently).


The best time for observation are spring, summer – when the water level is the highest – and autumn. Spring is interesting because of the breeding aspect, whereas autumn is the period of the biggest migrations, mainly due to the lowering water level and increase in mudded areas. In winter the lake is usually all covered with ice.


Router can be divided into:

– the dry ones along the train tracks and roads around the lake, as well as along the embankments,

– the wet ones – in  the eastern and northeastern part of the lake. Often they involve walking along mudded banks, wading in shallow water, crossing sedge beds and flooded meadows – for example to reach some of the little islands isolated by water and much liked by birds.

What can be useful?

The most interesting observations require reaching inaccessible places. Rubber boots and waders can prove extremely helpful. To watch birds from big distances and without scaring them away binoculars of a fieldscope are recommended.

Late spring and summer can be boiling hot. As there is no shadow on the routes it is necessary to remember about protection from the sun, something to cover the head and suitable clothes.

Autumn, winter and spring can be unpleasantly cold and very windy. Warm clothes including cap, scarf, gloves and a warm jacket are a must.

Let us not forget about comfortable shoes/boots because the walk along the train tracks is about 3.5 km long.

As there is no shop on the route it is good to take something to eat and drink.


If you do not have any equipment for birdwatching, the school in Siemianówka has some binoculars and fieldscopes to rent.

Europejski Fundusz Rolny na rzecz Rozwoju Obszarów Wiejskich. Europa inwestująca w obszary wiejskie. Projekt współfinansowany ze środków Unii Europejskiej w ramach osi 4 Leader. Program Rozwoju Obszarów Wiejskich na lata 2007-2013. Projekt zrealizowany przez Stowarzyszenie Metamorphosis. Instytucja zarządzająca Programem Rozwoju Obszarów Wiejskich na lata 2007-13 Minister Rolnictwa i Rozwoju Wsi