American Tree Sparrow
EntdeckenVögel
American Tree Sparrow
spizelloides arborea
The American Tree Sparrow is a cheerful and hardy visitor to winter backyards across North America. Despite its name, this small sparrow actually spends most of its time foraging on the ground and nests on tundra shrubs rather than high in the canopy. Originally named by European settlers who noted its resemblance to the Eurasian Tree Sparrow, this bird is easily recognized by its bright rusty cap and a single dark spot in the center of its breast. In the summer, they migrate to the far north of Canada and Alaska, where they fill the open tundra with sweet, musical songs. During the winter, they travel south in cooperative flocks, bringing life to snowy fields and garden feeders alike.
Lebensraum: Found in open shrubby tundra during the breeding season, and weedy fields, forest edges, and suburban backyards during the winter.
Aussehen
A medium-sized sparrow measuring about 13 to 16 centimeters, the American Tree Sparrow is identified by its bright rufous-brown cap and a thin rufous line extending behind its eye. Its gray face contrasts with a clean, unstreaked gray-white breast, which is uniquely marked with a distinct dark spot right in the center. Its wings feature two distinct white bars on a background of warm brown and black streaks. Additionally, it has a prominent two-toned bill with a dark gray upper mandible and a bright yellow lower mandible.
ReichAnimaliaStammChordataKlasseAvesOrdnungPasseriformesFamiliePasserellidaeGattungSpizelloides
Kategorie
VögelSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
Mach den ersten Snap!
Interessante Fakten
An individual American Tree Sparrow must consume about thirty percent of its body weight in food and water every day to survive cold winter temperatures.
Despite its name, the American Tree Sparrow actually nests on or near the ground, not in trees, as early European settlers mistook them for the European Tree Sparrow.
They form foraging flocks during the winter, often mixing with other species like Dark-eyed Juncos and Harris's Sparrows.
They have a distinctive bicolored bill: the upper half is dark grey or black, while the lower half is a bright yellow.
Besondere Fähigkeiten
Fähigkeit
Sub-Zero Shivering
They can survive temperatures as low as minus twenty degrees Fahrenheit by continuously shivering to raise their metabolic rate.
Fähigkeit
Snow Scratching
They use a specialized double-scratch hop technique with both feet to clear snow and leaf litter, exposing hidden seeds.
Fähigkeit
Vocal Flocking
They utilize a constant stream of high-pitched, soft notes while feeding to keep flock members coordinated and safe in dense brush.
Maße und Details
- Länge
- 13-16 cm
- Flügelspannweite
- 20-24 cm
- Gewicht
- 0.013-0.028 kg
- Lebenserwartung
- 2-8 Jahre
- Top Speed
- 35 km/h
- Gelegegröße
- 4-6
- Brutzeit
- 11-13 Tage
- Zugstrecke
- 3000 km
Ernährung und Fütterung
During the winter, they rely almost exclusively on the seeds of grasses, weeds, and birch trees. In summer, they shift to a high-protein diet of insects and spiders to support breeding.
Altersunterschiede: Chicks are fed entirely on insects and other small invertebrates, whereas adults gradually transition to a seed-based diet as winter approaches.
Hauptnahrung
- Grass seeds
- Weed seeds
- Caterpillars
- Beetles
- Berries
Nahrungssuche
- Foraging
Ökologische Zusammenhänge
eaten by
Sharp-shinned Hawk
Accipiter striatus
Preys on wintering sparrows at garden feeders and forest edges.
competitor
Dark-eyed Junco
Junco hyemalis
Competes for fallen seeds and space at winter foraging sites and backyard feeders.
eaten by
Merlin
Falco columbarius
Preys on adult sparrows during their migration and in breeding territories.
Merkmale
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man American Tree Sparrow?
Der einfachste Weg, American Tree Sparrow zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von American Tree Sparrow?
13-16 cm
Was ist der/die/das flügelspannweite von American Tree Sparrow?
20-24 cm
Was ist der/die/das gewicht von American Tree Sparrow?
0.013-0.028 kg
Was ist der/die/das lebenserwartung von American Tree Sparrow?
2-8 Jahre
Was ist der/die/das top Speed von American Tree Sparrow?
35 km/h
Was frisst American Tree Sparrow?
During the winter, they rely almost exclusively on the seeds of grasses, weeds, and birch trees. In summer, they shift to a high-protein diet of insects and spiders to support breeding.
Wo findet man American Tree Sparrow normalerweise?
Found in open shrubby tundra during the breeding season, and weedy fields, forest edges, and suburban backyards during the winter.
Snap-Karte
Zoome hinein, um Cluster aufzulösen und zu sehen, wo dieses Objekt fotografiert wurde.
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Neueste Snaps
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