Perching Birds
avatar
Photo by Admin
Not available

Savannah Sparrow

Passerculus sandwichensis

Last update: 30 Jun 2026

Savannah Sparrow 的基本信息

Scientific NamePasserculus sandwichensis
Status LC 无危
Size11-14 cm (4-6 inch)
Colors
Brown
White
Type
Perching Birds
type
FamilyNew World sparrows

简介

萨凡纳麻雀(学名:Passerculus sandwichensis)是北美洲最常见且分布广泛的雀形目鸟类之一。这种体型娇小、充满活力的鸟类以其独特的鸣叫声和在地表活动的习性而闻名。尽管它们在外观上往往与其他的麻雀品种难以区分,但仔细观察其细微的羽色变化和行为模式,会发现它们在生态系统中扮演着至关重要的角色。萨凡纳麻雀主要栖息在开阔的草地、农田以及沿海的盐沼地带,展现出极强的环境适应能力。对于鸟类爱好者和研究者而言,萨凡纳麻雀不仅是一个极佳的观察对象,也是研究迁徙行为和物种演化的重要样本。它们不仅是自然的歌者,更是草原生态系统中不可或缺的组成部分,反映了环境健康状况的重要指标。

外貌特征

萨凡纳麻雀的体型较小,体长通常在11至14厘米之间。其外观特征主要呈现为棕色与白色的交织,这也是为了适应开阔草地环境而演化出的保护色。它们背部布满了深褐色的条纹,这些条纹在枯草丛中提供了极佳的伪装效果。腹部则以白色为底,带有清晰且细密的深褐色纵纹。一个显著的识别特征是它们眼睛上方常有一道淡黄色的眉纹,虽然颜色深浅各异,但通常能作为辨识的依据。它们的喙部短小而坚硬,适合处理各种种子。腿部强壮,适合在地面上快速奔跑或在草茎上跳跃。由于其羽色与环境的高度融合,这种麻雀在静止不动时极难被发现,这也是它们在进化过程中为了躲避天敌而形成的生存策略。

栖息地

萨凡纳麻雀对栖息地的选择表现出明显的偏好,它们通常偏爱开阔的、植被低矮的区域。这包括了广袤的草原、牧场、农田、荒野以及沿海的盐沼地。它们很少出现在茂密的森林中,因为开阔的环境能让它们更好地通过视觉观察潜在的捕食者。在迁徙季节,它们会表现出极强的流动性,出现在各种开阔的栖息地中。这种对栖息地的依赖性意味着,大面积的湿地和草原保护对于维持萨凡纳麻雀的种群数量至关重要。如果栖息地遭到破坏或碎片化,这些鸟类的生存空间将受到严重威胁。

饮食习性

作为典型的杂食性鸟类,萨凡纳麻雀的饮食结构随着季节的变化而调整。在夏季繁殖期,它们主要以昆虫为食,包括甲虫、毛虫、蚱蜢和各种小型无脊椎动物,这些高蛋白的食物为幼鸟的生长提供了必要的营养。进入秋冬季节后,它们的食性转向以植物种子为主,例如各种禾本科植物、杂草种子以及零星的浆果。它们习惯于在地面上通过翻找落叶和草丛来觅食,这种“走地”的进食方式非常高效。在严寒的冬季,它们也会在人类留下的农耕遗迹中寻找残留的谷物,展现出惊人的生存智慧。

繁殖与筑巢

萨凡纳麻雀的繁殖期通常从春季持续到夏季。它们是典型的地面筑巢者,巢穴通常建造在草丛茂密、隐蔽性良好的地面坑洼处。雌鸟负责主要筑巢工作,使用干燥的草茎、纤维和细根构建一个杯状的巢,内部通常铺上柔软的动物毛发以保持温暖。每窝产卵通常为3到6枚,卵的颜色为浅蓝色或灰白色,带有红褐色的斑点。孵化工作主要由雌鸟完成,持续约12天左右。雏鸟出生后,双亲会共同承担喂养责任。由于地面筑巢面临较大的捕食压力,萨凡纳麻雀在繁殖季节会表现出高度的警惕性,时刻保护着幼鸟的安全。

行为习性

萨凡纳麻雀的行为模式极具特色。它们大部分时间在地面上活动,奔跑速度极快。当受到干扰时,它们通常会先在草丛中低飞一段距离,然后迅速钻入植被中隐蔽,而非直接远遁。雄鸟在繁殖季节会站在高处的草茎或灌木顶端发出清脆的鸣叫,以宣示领地。此外,萨凡纳麻雀具有很强的领地意识,会驱赶靠近巢穴的其他同类。在迁徙过程中,它们表现出群居性,常与其他品种的麻雀混在一起,形成临时的迁徙群体,这种社会性行为有助于提高个体在长途飞行中的存活率。

保护现状 - LC 无危

根据目前的评估,萨凡纳麻雀在全球范围内的保护状况被列为“无危”(Least Concern)。尽管如此,由于城市化进程、农业集约化以及湿地丧失,某些地区的萨凡纳麻雀种群确实面临着栖息地退化的挑战。特别是对于那些依赖特定盐沼环境的亚种,气候变化带来的海平面上升对其繁殖地构成了直接威胁。因此,持续的监测工作和对原生草地栖息地的保护,依然是确保该物种长期繁衍的关键措施。

趣闻轶事

  1. 萨凡纳麻雀的鸣叫声非常独特,听起来像是一串高频的“叮”声,随后跟着一段嘶哑的颤音。
  2. 它们在北美的迁徙距离非常惊人,有些种群从阿拉斯加一直迁徙到墨西哥过冬。
  3. 该鸟种的亚种数量多达28个,是北美变异性最高的鸟类之一。
  4. 萨凡纳麻雀在地面奔跑的姿态被很多观鸟者形容为“像老鼠一样”。
  5. 它们能够通过感知地球磁场来进行长距离的迁徙导航。

观鸟者提示

想要在野外成功观察萨凡纳麻雀,耐心是第一要素。由于它们善于隐蔽在草丛中,建议使用高倍率的双筒望远镜,并在清晨或傍晚它们鸣叫最频繁的时间段前往开阔的草地。当听到类似“叮”的叫声时,不要急于寻找,先静止观察草顶部的动静。如果你看到一只体型较小、背部有明显条纹的鸟在地面快速移动,那很可能就是它。此外,穿着与环境颜色相近的服装可以减少对它们的干扰,增加观察的成功率。

结论

萨凡纳麻雀作为自然界中平凡而卓越的物种,其生命力与适应性令人感叹。从它们精巧的地面巢穴,到那婉转在草丛间的鸣叫,每一个细节都诉说着物种进化的奇迹。通过本文的介绍,我们不仅了解了萨凡纳麻雀的物理特征和行为习性,更意识到保护其栖息地对于维护生物多样性的重要意义。观察萨凡纳麻雀不仅仅是一项休闲活动,更是我们与自然重新建立连接的契机。在这个快节奏的时代,能够静下心来观察这种灵动的小生命,去理解它们如何在大自然的严酷考验下繁衍生息,是一种难得的修行。希望每一位读者在未来的观鸟旅程中,都能幸运地邂逅这些草原上的小精灵,并被它们那朴实而坚韧的生命光芒所打动。保护自然,从认识身边的每一只鸟儿开始。

Savannah Sparrow Distribution Map & Range

Official Distribution Data provided by
BirdLife International and Handbook of the Birds of the World (2025)

Share:

Previous
Next
avatar
{blogMain.author}
200 Follower
Follow
{blogMain.author} is a writer who draws. He’s the Bestselling author of “Number of The Year”. Donec vitae tortor efficitur, convallis lelobortis elit.
Subscribe For Daily Newsletter

Explore More Species in the New World sparrows Family

Abert's Towhee
21-24 cm
Abert's Towhee
Melozone aberti
American Tree Sparrow
14-15 cm
American Tree Sparrow
Passerella arborea
17-19 cm
Antioquia Brushfinch
Atlapetes blancae
Apurimac Brushfinch
18-20 cm
Apurimac Brushfinch
Atlapetes forbesi
13-15 cm
Ashy-throated Chlorospingus
Chlorospingus canigularis
13-16 cm
Bachman's Sparrow
Peucaea aestivalis
14-16 cm
Baird's Junco
Junco bairdi
Baird's Sparrow
11-13 cm
Baird's Sparrow
Passerculus bairdii
Bay-crowned Brushfinch
17-19 cm
Bay-crowned Brushfinch
Atlapetes seebohmi
Belding's Sparrow
12-14 cm
Belding's Sparrow
Passerculus guttatus
12-14 cm
Bell's Sparrow
Artemisiospiza belli
Bermuda Towhee
19-22 cm
Bermuda Towhee
Pipilo naufragus
Black-capped Sparrow
13-14 cm
Black-capped Sparrow
Arremon abeillei
Black-chested Sparrow
13-15 cm
Black-chested Sparrow
Peucaea humeralis
13-15 cm
Black-chinned Sparrow
Spizella atrogularis
Black-faced Brushfinch
18-20 cm
Black-faced Brushfinch
Atlapetes melanolaemus
Black-fronted Brushfinch
17-19 cm
Black-fronted Brushfinch
Atlapetes nigrifrons
18-20 cm
Black-headed Brushfinch
Arremon atricapillus
18-20 cm
Black-spectacled Brushfinch
Atlapetes melanopsis
15-17 cm
Black-striped Sparrow
Arremonops conirostris
12-14 cm
Black-throated Sparrow
Amphispiza bilineata
17-19 cm
Bolivian Brushfinch
Atlapetes rufinucha
13-15 cm
Botteri's Sparrow
Peucaea botterii
13-14 cm
Brewer's Sparrow
Spizella breweri
Bridled Sparrow
12-14 cm
Bridled Sparrow
Peucaea mystacalis
20-25 cm
California Towhee
Melozone crissalis
20-23 cm
Canyon Towhee
Melozone fusca
Caracas Brushfinch
17-19 cm
Caracas Brushfinch
Arremon phaeopleurus
13-15 cm
Cassin's Sparrow
Peucaea cassinii
Chaco Sparrow
13-14 cm
Chaco Sparrow
Rhynchospiza strigiceps
16-18 cm
Chestnut-capped Brushfinch
Arremon brunneinucha
12-15 cm
Chipping Sparrow
Spizella passerina
18-20 cm
Choco Brushfinch
Atlapetes crassus
Cinnamon-tailed Sparrow
13-14 cm
Cinnamon-tailed Sparrow
Peucaea sumichrasti
12-14 cm
Clay-colored Sparrow
Spizella pallida
18-20 cm
Collared Towhee
Pipilo ocai
13-15 cm
Common Chlorospingus
Chlorospingus flavopectus
17-19 cm
Costa Rican Brushfinch
Arremon costaricensis
15-17 cm
Costa Rican Ground-sparrow
Melozone cabanisi
Cream-crowned Brushfinch
17-19 cm
Cream-crowned Brushfinch
Atlapetes paynteri
17-19 cm
Cuzco Brushfinch
Atlapetes canigenis
13-17 cm
Dark-eyed Junco
Junco hyemalis
13-15 cm
Dusky Chlorospingus
Chlorospingus semifuscus
Dusky-headed Brushfinch
17-19 cm
Dusky-headed Brushfinch
Atlapetes fuscoolivaceus
18-23 cm
Eastern Towhee
Pipilo erythrophthalmus
13-15 cm
Field Sparrow
Spizella pusilla
Five-striped Sparrow
14-15 cm
Five-striped Sparrow
Amphispiza quinquestriata
17-19 cm
Fulvous-headed Brushfinch
Atlapetes fulviceps
15-18 cm
Golden-crowned Sparrow
Zonotrichia atricapilla
Golden-winged Sparrow
13-14 cm
Golden-winged Sparrow
Arremon schlegeli
11-14 cm
Grasshopper Sparrow
Ammodramus savannarum
12-14 cm
Grassland Sparrow
Ammodramus humeralis
13-15 cm
Green-backed Sparrow
Arremonops chloronotus
Green-striped Brushfinch
17-19 cm
Green-striped Brushfinch
Arremon virenticeps
17-19 cm
Green-tailed Towhee
Pipilo chlorurus
17-19 cm
Grey-browed Brushfinch
Arremon assimilis
Grey-crowned Ground-sparrow
15-17 cm
Grey-crowned Ground-sparrow
Melozone occipitalis
Guadalupe Junco
13-15 cm
Guadalupe Junco
Junco insularis
Half-collared Sparrow
13-14 cm
Half-collared Sparrow
Arremon semitorquatus
17-20 cm
Harris's Sparrow
Zonotrichia querula
Henslow's Sparrow
11-13 cm
Henslow's Sparrow
Passerculus henslowii
Large-billed Sparrow
14-16 cm
Large-billed Sparrow
Passerculus rostratus
18-20 cm
Large-footed Finch
Pezopetes capitalis
15-18 cm
Lark Bunting
Calamospiza melanocorys
15-17 cm
Lark Sparrow
Chondestes grammacus
11-13 cm
LeConte's Sparrow
Ammospiza leconteii
12-14 cm
Lincoln's Sparrow
Melospiza lincolnii
Maranon Sparrow
13-14 cm
Maranon Sparrow
Arremon nigriceps
Merida Brushfinch
17-19 cm
Merida Brushfinch
Atlapetes meridae
Moustached Brushfinch
17-18 cm
Moustached Brushfinch
Atlapetes albofrenatus
11-13 cm
Nelson's Sparrow
Ammospiza nelsoni
Oaxaca Sparrow
14-16 cm
Oaxaca Sparrow
Aimophila notosticta
16-17 cm
Ochre-breasted Brushfinch
Atlapetes semirufus
17-18 cm
Olive Finch
Arremon castaneiceps
14-16 cm
Olive Sparrow
Arremonops rufivirgatus
14-15 cm
Orange-billed Sparrow
Arremon aurantiirostris
14-16 cm
Orange-throated Chlorospingus
Chlorospingus hypophaeus
17-19 cm
Pale-headed Brushfinch
Atlapetes pallidiceps
18-20 cm
Pale-naped Brushfinch
Atlapetes pallidinucha
Paria Brushfinch
17-19 cm
Paria Brushfinch
Arremon phygas
14-15 cm
Pectoral Sparrow
Arremon taciturnus
Perija Brushfinch
17-19 cm
Perija Brushfinch
Arremon perijanus
14-16 cm
Pirre Chlorospingus
Chlorospingus inornatus
15-17 cm
Prevost's Ground-sparrow
Melozone biarcuata
15-19 cm
Red Fox-sparrow
Passerella iliaca
Rufous-capped Brushfinch
16-18 cm
Rufous-capped Brushfinch
Atlapetes pileatus
13-15 cm
Rufous-collared Sparrow
Zonotrichia capensis
13-15 cm
Rufous-crowned Sparrow
Aimophila ruficeps
Rufous-eared Brushfinch
17-19 cm
Rufous-eared Brushfinch
Atlapetes rufigenis
12-14 cm
Rufous-winged Sparrow
Peucaea carpalis
14-16 cm
Rusty Sparrow
Aimophila rufescens
17-19 cm
Rusty-bellied Brushfinch
Atlapetes nationi
Rusty-crowned Ground-sparrow
15-17 cm
Rusty-crowned Ground-sparrow
Melozone kieneri
14-16 cm
Saffron-billed Sparrow
Arremon flavirostris
13-15 cm
Sagebrush Sparrow
Artemisiospiza nevadensis
11-13 cm
Saltmarsh Sparrow
Ammospiza caudacuta
San Benito Sparrow
13-15 cm
San Benito Sparrow
Passerculus sanctorum
17-19 cm
Santa Marta Brushfinch
Atlapetes melanocephalus
Sao Francisco Sparrow
13-14 cm
Sao Francisco Sparrow
Arremon franciscanus
12-15 cm
Seaside Sparrow
Ammospiza maritima
13-15 cm
Short-billed Chlorospingus
Chlorospingus parvirostris
13-14 cm
Sierra Madre Sparrow
Xenospiza baileyi
Sierra Nevada Brushfinch
18-20 cm
Sierra Nevada Brushfinch
Arremon basilicus
Slate-coloured Fox-sparrow
15-19 cm
Slate-coloured Fox-sparrow
Passerella schistacea
17-19 cm
Slaty Brushfinch
Atlapetes schistaceus
Socorro Towhee
18-20 cm
Socorro Towhee
Pipilo socorroensis
12-17 cm
Song Sparrow
Melospiza melodia
Sooty Fox-sparrow
15-19 cm
Sooty Fox-sparrow
Passerella unalaschcensis
14-16 cm
Sooty-capped Chlorospingus
Chlorospingus pileatus
13-15 cm
Sooty-faced Finch
Arremon crassirostris
17-23 cm
Spotted Towhee
Pipilo maculatus
13-15 cm
Stripe-crowned Sparrow
Arremon dorbignii
14-16 cm
Stripe-headed Sparrow
Peucaea ruficauda
Striped Sparrow
13-15 cm
Striped Sparrow
Oriturus superciliosus
12-15 cm
Swamp Sparrow
Melospiza georgiana
14-16 cm
Tacarcuna Chlorospingus
Chlorospingus tacarcunae
17-19 cm
Taczanowski's Brushfinch
Atlapetes taczanowskii
14-16 cm
Tanager Finch
Oreothraupis arremonops
Tepui Brushfinch
17-18 cm
Tepui Brushfinch
Atlapetes personatus
Thick-billed Fox-sparrow
16-19 cm
Thick-billed Fox-sparrow
Passerella megarhyncha
13-14 cm
Tocuyo Sparrow
Arremonops tocuyensis
Tricolored Brushfinch
17-19 cm
Tricolored Brushfinch
Atlapetes tricolor
Tumbes Sparrow
14-15 cm
Tumbes Sparrow
Rhynchospiza stolzmanni
13-16 cm
Vesper Sparrow
Pooecetes gramineus
Vilcabamba Brushfinch
17-18 cm
Vilcabamba Brushfinch
Atlapetes terborghi
13-15 cm
Volcano Junco
Junco vulcani
White-browed Brushfinch
17-19 cm
White-browed Brushfinch
Arremon torquatus
15-18 cm
White-crowned Sparrow
Zonotrichia leucophrys
15-18 cm
White-eared Ground-sparrow
Melozone leucotis
White-headed Brushfinch
18-20 cm
White-headed Brushfinch
Atlapetes albiceps
17-19 cm
White-naped Brushfinch
Atlapetes albinucha
18-20 cm
White-rimmed Brushfinch
Atlapetes leucopis
15-17 cm
White-throated Sparrow
Zonotrichia albicollis
White-throated Towhee
19-21 cm
White-throated Towhee
Melozone albicollis
17-19 cm
White-winged Brushfinch
Atlapetes leucopterus
Worthen's Sparrow
13-14 cm
Worthen's Sparrow
Spizella wortheni
17-19 cm
Yellow-breasted Brushfinch
Atlapetes latinuchus
13-15 cm
Yellow-browed Sparrow
Ammodramus aurifrons
14-16 cm
Yellow-eyed Junco
Junco phaeonotus
Yellow-green Brushfinch
16-17 cm
Yellow-green Brushfinch
Pselliophorus luteoviridis
Yellow-headed Brushfinch
17-19 cm
Yellow-headed Brushfinch
Atlapetes flaviceps
Yellow-mandibled Sparrow
14-16 cm
Yellow-mandibled Sparrow
Arremon axillaris
16-18 cm
Yellow-striped Brushfinch
Atlapetes citrinellus
Yellow-thighed Brushfinch
17-18 cm
Yellow-thighed Brushfinch
Pselliophorus tibialis
Yellow-throated Chlorospingus
14-16 cm
Yellow-throated Chlorospingus
Chlorospingus flavigularis
13-14 cm
Yungas Sparrow
Rhynchospiza dabbenei
Zapata Sparrow
15-16 cm
Zapata Sparrow
Torreornis inexpectata