Barnacle geese numbers in the Helsinki region remained stable this year, but researchers counted significantly more goslings than in 2023, according to the Finnish Environment Institute (Syke). A late‑July survey found 5,448 barnacle geese in Helsinki and eastern Espoo, including 860 chicks.
Breeding productivity rebounds after weather‑driven dip
The total barnacle goose population in the capital area has stayed broadly unchanged since 2015, but breeding success fluctuates with spring and early‑summer weather. Hot summers can reduce chick production by limiting food on lawns.
This year, warm conditions did not damage turf, leaving ample forage. As a result, goslings represented 15.8% of all birds counted—well above last year’s 9.2%. The average brood size was 2.2 chicks per family, in line with the long‑term average.
Nesting grounds shift within the city
The largest flocks were recorded in established hotspots across Helsinki and Espoo, including Kaivopuisto, Suomenlinna, Töölönlahti, Arabianranta and Otsolahti. These coastal and inner‑city green spaces offer short vegetation and accessible water, conditions that favour grazing and vigilance for predators.
Best breeding outcomes this summer were observed around Suomenlinna, Kaivopuisto, Kaisaniemi Park and Arabianranta. By contrast, Töölönlahti has lost importance due to reduced lawn area and fencing combined with taller vegetation—measures designed to keep goose numbers down in busy urban parks. Kaisaniemi Park recorded a notable uptick in broods for the first time.
Most barnacle geese seen in southern Finland are migratory birds. They typically breed in the Arctic and winter in Western Europe, using Finland chiefly as a feeding stopover on fields and shorelines. Only a small share nests within the Helsinki area itself. Families move their young to city lawns in June–July to graze; by late July, most goslings are flight‑capable and gradually shift towards inland parks and farmland.
Monitoring and conservation context
Urban brood counts in late July are led by Syke, while BirdLife Finland coordinates broader counts with authorities. Nationally, the barnacle goose is protected under Finland’s Nature Conservation Act and assessed as Least Concern internationally. In recent years, authorities and cities have balanced urban wildlife management—such as habitat design and access restrictions—with the species’ protected status.
With overall numbers stable and productivity up, the Helsinki area may see more first‑year birds in late summer and early autumn. Local management—particularly vegetation planning and temporary fencing—will likely continue shaping where birds feed and breed. As coastal cities across the Nordic region and the EU adapt public spaces to wildlife pressures, Helsinki’s approach offers a case study in balancing biodiversity with urban use.
