Las Aves Más Raras del Mundo
25 birds · 10–80 cm wingspan · 0.0–2.6 kg
Algunas de las aves más raras sobreviven solo en pequeñas poblaciones insulares o en fragmentos de bosque aislados. La Guacamaya de Spix está extinta en estado silvestre; el Cóndor de California llegó a reducirse a apenas 27 individuos antes de que comenzaran los programas de cría en cautiverio. Cada especie de esta lista representa una emergencia de conservación — y, en muchos casos, un esfuerzo activo de recuperación.
Este ranking prioriza a las aves según la gravedad de su estado de conservación (primero CR, luego EN, luego VU) y, dentro de cada categoría, las ordena por tamaño de población estimado, destacando a las que están más cerca del límite.
How we ranked these
Clasificadas según la prioridad del estado de conservación de la UICN (CR > EN > VU) y, dentro de cada categoría, por el tamaño de población estimado (ascendente). Solo se incluyen aves con estimaciones de población y estado de amenaza documentados.
Pinzones · Critically Endangered
The Akekee is a critically endangered Hawaiian honeycreeper weighing about 11 g with a wingspan near 12 cm. Endemic to the upland forests of Kauai, it uses its uniquely twisted bill to pry open leaf b
Pinzones · Critically Endangered
The Akikiki is a critically endangered Hawaiian creeper weighing about 14 g with a wingspan near 13 cm. Endemic to the forests of Kauai, it creeps along tree trunks and branches searching for insects,
Pinzones · Critically Endangered
The Akohekohe, or Crested Honeycreeper, is a critically endangered Hawaiian bird weighing about 27 g with a wingspan near 18 cm. Endemic to the windward slopes of Haleakala on Maui, it is recognised b
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Alagoas AntwrenThamnophilidae · Critically Endangered
The Alagoas Antwren is a critically endangered antbird of northeastern Brazil, weighing about 10 g with a wingspan near 10 cm. It is restricted to very small forest fragments in Alagoas state and face
10 cm 10 g Critically EndangeredSee details → -
Alagoas TyrannuletMosqueros Tiranos · Critically Endangered
The Alagoas Tyrannulet is a critically endangered small flycatcher weighing about 8 g with a wingspan near 11 cm. It is known from only a handful of forest fragments in Alagoas and Pernambuco states o
10 cm 8 g Critically EndangeredSee details → -
Annamite Crested ArgusFaisanes y Perdices · Critically Endangered
One of the most spectacular Phasianidae birds (~1.5 kg), endemic to evergreen forests of Vietnam and Laos. Males possess extraordinary elongated brown-spotted tail feathers. Performs a solitary lekkin
67 cm 1.5 kg Critically EndangeredSee details → -
Annobon Scops-owlBúhos Verdaderos · Critically Endangered
The Annobon Scops-owl is a critically endangered small owl endemic to Annobón Island, with a wingspan of about 26 cm and weighing around 67 grams. As one of the rarest owls in Africa, it faces severe
26 cm 67 g Critically EndangeredSee details → -
Antioquia BrushfinchPasserellidae · Critically Endangered
The Antioquia Brushfinch is a critically endangered sparrow-like bird from Colombia, weighing around 28 grams with a wingspan near 14 cm. Known from only a single location in Antioquia department, it
14 cm 28 g Critically EndangeredSee details → -
Araripe ManakinSaltarines · Critically Endangered
The Araripe Manakin is a critically endangered manakin endemic to the Chapada do Araripe plateau in northeastern Brazil, weighing about 20 grams with a wingspan near 15 cm. Males are strikingly white
15 cm 20 g Critically EndangeredSee details → -
Baer's PochardPatos, Gansos y Cisnes · Critically Endangered
El porrón de Baer es una especie de pato buceador en peligro crítico de extinción que cría en el este de Siberia y el nordeste de China. El macho tiene la cabeza y el cuello de color verde-negro brill
40 cm 707 g Critically EndangeredSee details → -
Bahama NuthatchTrepadores Azules · Critically Endangered
The Bahama Nuthatch is a Critically Endangered nuthatch endemic to the pine forests of Grand Bahama Island, weighing about 9.95g with a wingspan of 13cm. It forages on tree bark for insects and larvae
13 cm 10 g Critically EndangeredSee details → -
Balearic ShearwaterPetreles y Pardelas · Critically Endangered
30–38 cm. Brown above; variably dirty-white to brown below; often shows brown smudging on flanks. Breeds only Balearic Islands, Spain. Critically Endangered with fewer than 3,000 pairs; faces extincti
48 cm 515 g Critically EndangeredSee details → -
Bali MynaEstorninos y Miná · Critically Endangered
The Bali Myna is a Critically Endangered starling endemic to the island of Bali, Indonesia, weighing about 92.5g with a wingspan of 26.2cm. It has snow-white plumage with black wingtips and a vivid bl
26 cm 92 g Critically EndangeredSee details → -
Banded CotingaCotingas · Critically Endangered
The Banded Cotinga is a Critically Endangered bird of the family Cotingidae endemic to the Atlantic Forest of southeastern Brazil. Weighing about 65g with a wingspan of 22.8cm, the male displays brill
23 cm 65 g Critically EndangeredSee details → -
Banggai CrowCuervos, Arrendajos y Urracas · Critically Endangered
The Banggai Crow is a Critically Endangered corvid of the family Corvidae found only on Peleng Island in Indonesia. Weighing about 175g with a wingspan of 40.2cm, it is a large all-black crow restrict
40 cm 175 g Critically EndangeredSee details → -
Baudin's Black-cockatooCacatúas · Critically Endangered
Baudin's Black-Cockatoo is a large, critically endangered black cockatoo endemic to the forests of southwestern Australia. It is distinguished by its white cheek patches, white-tipped tail feathers, a
75 cm 554 g Critically EndangeredSee details → -
Beck's PetrelPetreles y Pardelas · Critically Endangered
29 cm. Small; dark brown above and on breast; white belly. Critically Endangered; known from only two specimens collected 1928–1929 in the Solomon Islands and Bismarck Sea. No confirmed breeding site.
48 cm 185 g Critically EndangeredSee details → -
Bengal FloricanAvutardas · Critically Endangered
El sisón de Bengala es un sisón de tamaño mediano (55-68 cm) de los pastizales altos del subcontinente indio y el sureste asiático. El macho tiene una elaborada exhibición de cortejo con plumas del cu
69 cm 1.8 kg Critically EndangeredSee details → -
Black-chinned MonarchMonarcas · Critically Endangered
The Black-chinned Monarch is a Critically Endangered small flycatcher known only from a tiny area on Boano Island in the Maluku province of Indonesia. Its very restricted range—a single small island—a
16 cm 18 g Critically EndangeredSee details → -
Black-hooded CoucalCucos · Critically Endangered
Cucal de Mindoro de 40–45 cm con plumaje negro y alas castañas, endémico de la isla de Mindoro en Filipinas, en peligro de extinción.
32 cm 201 g Critically EndangeredSee details → -
Black StiltAvocetas y Cigüeñuelas · Critically Endangered
El cigüeñuela de Nueva Zelanda, conocido localmente como 'pied stilt', es un ave zancuda con plumaje blanco y negro y largas patas rosas. Esta especie endémica anida en humedales, ríos y aguas costera
48 cm 208 g Critically EndangeredSee details → -
Blue-billed CurassowChachalacas, Pavas y Hoco · Critically Endangered
A large cracid (~2.7 kg) of family Cracidae, males black with a prominent blue bill and knob. Endemic to the lowland and foothill forests of northern Colombia. Forages on the forest floor for fruits,
80 cm 2.6 kg Critically EndangeredSee details → -
Blue-crowned LaughingthrushLeiothrichidae · Critically Endangered
Critically EndangeredSee details → -
Blue-eyed Ground DovePalomas y Tórtolas · Critically Endangered
Tiny dove, 14–17 cm, brown with a distinctive pale blue iris. Formerly known from cerrado grasslands of central Brazil (Mato Grosso and Goiás); nearly extinct due to agricultural conversion of cerrado
14 cm 46 g Critically EndangeredSee details → -
Blue-throated HillstarColibríes · Critically Endangered
A recently discovered hummingbird (11 cm) from the southwestern Andes of Ecuador at 3,300-3,900 m. Males have an iridescent blue throat. Described in 2018. Known from a single ridgeline. Critically En
8 g Critically EndangeredSee details →