---
title: "Błotniak amerykański"
description: "Circus hudsonius — Ptaki. The northern harrier (Circus hudsonius), also known as the marsh hawk or ring-tailed hawk, is a bird of prey."
canonical: https://animalchecklist.com/pl/animal/northern-harrier
last_updated: 2026-09-20
---

# Błotniak amerykański

> Circus hudsonius — Ptaki. The northern harrier (Circus hudsonius), also known as the marsh hawk or ring-tailed hawk, is a bird of prey.

- Scientific name: *Circus hudsonius*
- Category: `birds` (Ptaki)
- Habitats: `grassland` (Łąki i pola), `freshwater` (Jeziora i rzeki)
- iNaturalist observations: 60889
- Wikidata: [Q2603050](https://www.wikidata.org/wiki/Q2603050)
- iNaturalist taxon: [558446](https://www.inaturalist.org/taxa/558446)

## Names

- en: Northern Harrier
- de: Hudsonweihe
- es: Gavilán rastrero
- fr: Busard d'Amérique
- it: Albanella americana
- nl: Amerikaanse blauwe kiekendief
- pt: Tartaranhão-azulado
- pl: Błotniak amerykański

## Countries with the most observations

US (45900), CA (8856), MX (2092), FR (18), CR (17), PA (17), HN (10), BM (7), SV (7), BZ (6), CU (6), IE (5)

## Summary

The northern harrier (Circus hudsonius), also known as the marsh hawk or ring-tailed hawk, is a bird of prey. It breeds throughout the northern parts of the Northern Hemisphere in Canada and the northernmost United States.
The northern harrier migrates south in winter, with breeding birds in Canada and northern Great Plains of the U.S. moving to the American south, Mexico, and Central America. In the midwestern, mountain west, and north Atlantic states of the U.S., they may be present all year. This bird inhabits prairies, open areas, and marshes.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Northern_harrier

## Photo

![Błotniak amerykański](https://animalchecklist.com/img/animals/northern-harrier/medium.jpg)

Photo: Steve Woodward · CC0 · inaturalist — https://www.inaturalist.org/observations/70575394

## Machine access

`GET https://animalchecklist.com/api/v1/animals/northern-harrier?lang=pl` — see [openapi.json](https://animalchecklist.com/openapi.json).