Articles on this page are available in 2 other languages: Chinese (Simplified) (7), Spanish (8) (learn more)

Overview

Distribution

Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) BREEDS: in North America locally from Maine and Rhode Island (recorded also in Bay of Fundy, New Brunswick; McAlpine et al. 1988) south to Florida, and west on the Gulf Coast to Louisiana, also inland, at least causally, in Arkansas (Blytheville). Major concentration of breeding in the U.S. is in southern New Jersey, Delaware Bay, and the lower coasts of the Delmarva Peninsula (Spendelow and Patton 1988); apparently the breeding range has been shifting northward on the Atlantic coast during the past few decades (Byrd and Johnston 1991). Breeds also in northwestern Costa Rica; Greater Antilles (Hispaniola, Cuba, and Puerto Rico); northern Venezuela; and widely in the Old World. NORTHERN WINTER: north to southern Louisiana, northern Florida; also regularly in eastern North Carolina and Virginia), sometimes in New Jersey; south through the breeding range and in the Old World. In the U.S., the highest winter densities occur in peninsular Florida (Root 1988). Wanders outside usual range.

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 1 person

Average rating: 4.0 of 5

Caribbean; North America; range extends from New Brunswick to southern Florida
translation missing: en.license_cc_by_4_0

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

occurs (regularly, as a native taxon) in multiple nations

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Transient

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Range

Locally in e N and s S America, Africa, Eurasia to Australasia.
  • Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Physical Description

Size

Length: 58 cm

Weight: 506 grams

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Diagnostic Description

Description

Length: 55-71 cm. Plumage: dark with purple gloss on neck, back and head, green gloss on wing coverts; non-breeding greener with greyish below. Immature sooty black with brown below. Bare parts: iris brown; facial skin purplish black, blue at start of breeding season; bill olive brown, decurved; feet and legs olive brown. Habitat:<388><393><391>
translation missing: en.license_cc_by_4_0

© WoRMS for SMEBD

Source: World Register of Marine Species

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Breeding adult differs from breeding adult white-faced ibis by olive-brown (vs. reddish) bill, brown (vs. red) eyes, gray-green legs with red joints (vs. all-red legs), and lack of a white feathered area adjacent to facial skin; also, in glossy ibis, pale edge of gray facial skin does not extend behind eye or under chin (white-faced ibis adult has white behind eye and under chin). Winter adult differs from winter adult white-faced ibis in usually having a pale line between the eye and bill (line absent in white-faced). In first fall plaumage, indistinguishable from immature white-faced ibis (NGS 1983).

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Behaviour All populations of this species undergo post-breeding dispersal movements (del Hoyo et al. 1992) and are considerably nomadic (Snow and Perrins 1998). In addition northern breeding populations are fully migratory (del Hoyo et al. 1992) and may travel on a broad front (e.g. across the Sahara) (Brown et al. 1982). Northern and southern breeding populations breed during the local spring, whilst breeding elsewhere coincides with the rains (del Hoyo et al. 1992). The species nests in mixed-species colonies, either in small groups (e.g. 5-100 pairs in Africa) (Brown et al. 1982) or in large aggregations of thousands of pairs, and during the winter or dry seasons the species usually forages in small flocks (Hancock et al. 1992, del Hoyo et al. 1992) of up to 30 indivduals (Brown et al. 1982). It often roosts communally at night in large groups (sometimes thousands of individuals) with other species, occasionally in trees far from wetland feeding sites (Brown et al. 1982). Habitat The species feeds in very shallow water (Hancock et al. 1992) and nests in freshwater or brackish wetlands with tall dense stands of emergent vegetation (e.g. reeds or rushes) and low trees or bushes (Marchant and Higgins 1990, del Hoyo et al. 1992). It shows a preference for marshes at the edges of lakes and rivers (Hancock et al. 1992), as well as lagoons, flood-plains, wet meadows (Marchant and Higgins 1990, del Hoyo et al. 1992), swamps (del Hoyo et al. 1992), reservoirs (Hancock et al. 1992), sewage ponds, rice-fields and irrigated cultivation (Marchant and Higgins 1990, del Hoyo et al. 1992). It less often occurs in coastal locations such as estuaries, deltas, saltmarshes (Hancock et al. 1992) and coastal lagoons (del Hoyo et al. 1992). Roosting sites are often large trees that may be far from water (Brown et al. 1982, del Hoyo et al. 1992). Diet The diet of the species varies seasonally depending on what is available (Hancock et al. 1992). It takes adult and larval insects (e.g. aquatic beetles, dragonflies, grasshoppers, crickets, flies and caddisflies), worms, leeches, molluscs (e.g. snails and mussels), crustaceans (e.g. crabs and crayfish) and occasionally fish, frogs, tadpoles, lizards, small snakes and nestling birds (del Hoyo et al. 1992). Breeding site The nest is a platform of twigs and vegetation usually positioned less than 1 m above water (occasionally up to 7 m) in tall dense stands of emergent vegetation (e.g. reeds or rushes), low trees or bushes over water (del Hoyo et al. 1992).

Systems
  • Terrestrial
  • Freshwater
  • Marine
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Comments: Marshes, swamps, lagoons, pond margins, lakes, flooded pastures; fresh, brackish, and salt water. Reported as mainly in freshwater habitats on the Atlantic coast of Florida, more common in saltwater habitats in Louisiana (Spendelow and Patton 1988). Nests usually with herons or other water birds, on the ground in a marsh or in small trees or bushes near water (e.g., in BACCHARIS, IVA, and MYRICA along the U.S. Atlantic coast). See Spendelow and Patton (1988) for further details on nesting habitat in different regions.

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Migration

Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.

Locally Migrant: Yes. At least some populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: Yes. At least some populations of this species make annual migrations of over 200 km.

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Trophic Strategy

Comments: Eats crayfishes, insects, water snakes, and other small aquatic animals (Palmer 1962). Probes/gleans in soft mud and shallow water. Young are fed by regurgitation.

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

General Ecology

Nonbreeding: solitary or in small groups when feeding (Stiles and Skutch 1989).

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Life History and Behavior

Life Expectancy

Lifespan, longevity, and ageing

Maximum longevity: 26.8 years (captivity) Observations: One specimen lived for 26.8 years in captivity (Brouwer et al. 1994).
Creative Commons Attribution 3.0 (CC BY 3.0)

© Joao Pedro de Magalhaes

Source: AnAge

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Reproduction

Clutch size usually is 3-4 (3 in south). Incubation, by both sexes (male during part of daylight period), lasts about 21 days. Young are tended by both parents, fly well and get own food at 4-6 weeks. Nests in small colonies; most colonies include less than 100 breeders (but up to about 1800) (Spendelow and Patton 1988).

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© NatureServe

Source: NatureServe

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Barcode data: Plegadis falcinellus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 2 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

NNNNNNNCTAATCTTTGGTGCATGAGCTGGTATAATCGGAACAGCACTCAGCTTATTAATTCGTGCAGAACTGGGACAACCAGGCACCCTCCTGGGAGACGACCAAATCTACAACGTAATTGTCACCGCCCATGCTTTCGTAATAATCTTCTTCATAGTAATACCAATCATGATCGGCGGATTTGGCAACTGACTTGTGCCCCTTATAATCGGGGCACCCGATATAGCATTCCCACGCATAAACAACATAAGCTTCTGACTCCTTCCCCCCTCCTTCCTTCTCCTTCTAGCCTCTTCCACAGTAGAAGCAGGAGCAGGCACAGGGTGAACTGTATACCCACCACTTGCCGGCAACCTTGCCCATGCTGGTGCCTCAGTAGACCTTGCCATCTTCTCCCTCCACCTAGCAGGGGTGTCATCTATCTTAGGGGCAATTAACTTCATCACAACTGCTATCAACATAAAACCACCCGCCCTTTCACAATACCAAACACCCCTATTCGTCTGATCTGTCTTAATCACTGCCGTCTTACTGTTACTATCGCTCCCAGTCCTCGCTGCTGGTATTACCATACTACTAACAGATCGAAACCTAAATACCACATTCTTCGACCCAGCTGGAGGAGGAGACCCCGTCCTATACCAACACCTANNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
-- end --

Download FASTA File

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Statistics of barcoding coverage: Plegadis falcinellus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 3
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2015

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

History
  • Least Concern (LC)
  • Least Concern (LC)
  • Least Concern (LC)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Default rating: 2.5 of 5