Inside inspections reveal animals missed at Black Woodpecker cavities
In Poland’s Augustów Forest, researchers recorded 50 animal taxa associated with Black Woodpecker cavities. Entrance cameras mostly recorded…
Read story →WILDLIFE IN THE NEWS
Research, conservation and new discoveries
A continuing selection of new studies, conservation projects and important developments connected to species in the archive.
Older Female Blackbirds Built More Debris Into Their Nests
Plastic strips, strings and other human-made materials appeared especially in the bases of Blackbird nests in a Polish…
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Inland Mute Swans Had Better Winter Body Condition Than Coastal Birds
A study of 853 mute swans in Poland suggests larger energy reserves in the colder interior than along…
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Dunnocks Are Passing Through Earlier in Spring
Over six decades, dunnocks passed Hel in northern Poland progressively earlier in spring. The midpoint shifted forward by…
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Great Tits Were Paler in Built-Up Neighbourhoods
Across six European cities, great tits had less vivid yellow breasts where buildings and roads covered more of…
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Zoonotic Sarcocystis Found in 3.3% of Polish Wild Boar Hunted for Food
Molecular testing of 241 wild boar from all 16 Polish provinces found Sarcocystis miescheriana DNA in 90% and…
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Three GPS-tracked Grey Herons Migrated Very Differently but Returned to the Same Breeding Grounds
GPS tracking of three adult grey herons breeding in Poland and Germany showed migration distances from 175 to…
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Six of Seven GPS-Tracked Great Egrets Returned to the Same Wintering Grounds
Six of seven great egrets tracked across at least two complete winters returned to the same wintering grounds;…
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Great Cormorants Increased as Southern Baltic Diving Seabirds Stayed 40% Below Early-1990s Levels
A 35-year analysis of Polish Baltic winter surveys found strong growth in great cormorants, while the wider diving-seabird…
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Wild Boar Shifted From Grass Leaves Toward Herb Roots as the Growing Season Ended in Central Poland
Stomach contents from 470 wild boar showed that understory plants remained a year-round food source, while grass leaves…
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Red Foxes Were Strongly Nocturnal and Detected Less Often Where Pedestrians Were Active
Camera traps in Poland’s Tuchola Forest showed strong nocturnal activity in red foxes and fewer detections where pedestrian…
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A Single High Lead Dose Altered Blood Cells in Great Tit Chicks
A single high experimental lead dose made red blood cells smaller and increased nuclear abnormalities in great tit…
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Hooded Crow Nestlings Had Low Levels of Cadmium, Lead and Arsenic in a Polish Wetland
Blood and feather samples from 29 hooded crow nestlings in Warta Mouth National Park showed low concentrations of…
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Poland’s Breeding Great Egret Population Reached 1,150–1,250 Pairs
Poland’s breeding great egret population increased by 84% from 2013 to 2025. Breeding was documented at 31 sites,…
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Raven Herpesvirus Was Suspected in Six Sudden Deaths in Poland
Six Common Ravens found dead together in central Poland were positive for both circovirus and a herpesvirus not…
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Blackcaps Advanced the Start of Spring Passage by Nine Days at Poland’s Baltic Coast Without Widening the Sex Gap
Forty-four years of Polish ringing data show that both male and female Eurasian blackcaps advanced the start of…
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First-Year Shorebirds Were More Often Infested and Carried More Wing Lice During Migration in Poland
Among 1,403 migrating shorebirds from 20 species, first-year birds carried more lice on their wings than adults and…
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Common Voles Were the Most Frequent Prey of Buzzards in Ojców, but Birds Dominated Biomass
Among 120 prey items identified in the diet of common buzzards in Ojców National Park, common voles accounted…
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Half of Headstarted Eurasian Curlews Explored Beyond Their Main Area Before Migration
GPS tracking of 34 headstarted Eurasian curlews in Poland found that 17 moved outside their main post-release area…
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Polish Maize Fields Had Fewer Breeding Bird Species and Lower Bird Density
Across 122 plots in Poland, maize fields had fewer breeding bird species and lower bird density than mosaics…
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