All 5 in 3 days here: ~50%
Biebrza National Park
🇵🇱 Poland
Eastern Europe, Poland 422 spp. recorded
Biebrza National Park lies in north‑eastern Poland and protects a mosaic of wetlands, river valleys and temperate forest. The landscape is dominated by expansive peat bogs, reed beds and scattered woodlands that flood in spring and dry into grassy meadows in summer.
53.310° N 22.554° E
🦜 Nature
289 Species sighted
77,828 Verified sightings From 2019 to 2026
May Best month
⭐ Iconic Species
📊 Most Spotted
⭐ Iconic Species
📊 Most Spotted
⭐ Iconic Species
📊 Most Spotted
📊 Most Spotted
📊 Most Spotted
📊 Most Spotted
🌙 Most active after dark
+ 194 more species with insufficient data
Challenges you can complete here
All 7 in 3 days here: <5%
Recent sightings in Biebrza National Park
LIVEiNaturalistSighting Calendar
How many species you'd see in a day
38Jan
39Feb
48Mar
57Apr
75May
69Jun
56Jul
46Aug
52Sep
42Oct
41Nov
27Dec
Sighting Zones
Warmer areas are where all species together are recorded most often.
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Osowiec Fortress
-
OTOP Observation Tower
🏕️ Experience
Essentials
Entrance
Paid
Tourism
Medium
Typical stay
1–2
daysTrails
Easy
World Heritage
No
Climate
Temp °C Rain mm
JanFebMarAprMayJunJulAugSepOctNovDec
0.0 Good
Wallace's Line Score
How good is this park for seeing wildlife? 🦜
Biodiversity
GoodHow rich is the wildlife?
2.9
Species by taxon
🦅 Birds 323
🐒 Mammals 77
🦎 Reptiles 9
🐸 Amphibians 13
422 Total Species
828 Global average across 316 parks
18 Threatened 0 Endemic
🔭
Sighting
Very goodHow likely to see animals?
3.8
🎯
Top-12 Avg Probability
63% 📊
Coverage (200 species at ≥5% of 422 in the inventory)
47% 🔀
Taxon variety in top 12 (10 bird, 2 mammal)
37% 🔭
Species per 10 outings (distinct species a visitor would meet over 10 outings — effort held equal across parks)
140 🌟
Iconic-group species (≥15%) (every species from the 19 iconic groups — monkeys, cats, toucans, macaws, sloths, crocodilians… — not just the 4 highlighted above)
12 ⭐
High-prob species (>40%)
40 🏕️
Experience
Very goodHow easy and pleasant is the visit?
3.6
Climate Harsh Low
Entrance Paid Low
Tourism Medium Medium
Trails Easy High
World Heritage No —
What visitors say
On the ground we spotted Grass Snakes, first for the tour.
Biebrza Marshes were posing similar challenges but our good wildlife karma and maybe also a little bit of expertise, made us see two Elks (Moose) and several Beavers very close on the first evening there.
After a few days in Mikolajki, the following four days of our holiday in Poland were spent in the Biebrza Marshes National Park, but we did not experience the park at its best.
Before you go
What animals can you see in Biebrza National Park?
422 species
Biebrza National Park has 422 recorded vertebrate species. The ones wildlife watchers report most often on a given day are Eurasian Moose (about 80%), Common Crane (about 70%), Western Roe Deer (about 70%), European Starling (about 60%) and Mallard (about 60%). Among reptiles, the most-seen is grass snake (about 50%); among amphibians, Moor Frog (about 50%).
When is the best time to visit Biebrza National Park for wildlife?
March to May
In those months the park's 12 most-seen species average about 70% on a given day, against about 40% in July–August and November–January.
Can you see a Common Crane in Biebrza National Park?
Yes
About 70% of wildlife watchers report a Common Crane sighting in Biebrza National Park on a given day, based on 1,761 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is March (about 90%).
Can you see a Western Marsh-Harrier in Biebrza National Park?
Yes
About 50% of wildlife watchers report a Western Marsh-Harrier sighting in Biebrza National Park on a given day, based on 1,086 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is April and May (about 70%).
Can you see a Eurasian Moose in Biebrza National Park?
Yes
About 80% of wildlife watchers report a Eurasian Moose sighting in Biebrza National Park on a given day, based on 77 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is January–March, September and November (about 90%).
Where in Biebrza National Park is wildlife easiest to see?
Around Goniądz area
The richest sighting zone is around Goniądz area, followed by Osowiec Fortress and Długa Luka, ranked by how many of the park's headline animals visitors can expect to see in each. See the zones on the map.
Is Biebrza National Park good for wildlife watching?
3.5 out of 5
On the Wallace's Line Score, Biebrza National Park rates 3.5/5: 206th of 316 parks worldwide and 4th in Europe. 50 of its species are reported by about 40% or more of wildlife watchers on a given day.
