Animalia > Chordata > Aves > Passeriformes > Icteridae > Quiscalus > Quiscalus major

Quiscalus major (Boat-tailed Grackle)

Synonyms: Cassidix major; Megaquiscalus major

Wikipedia Abstract

The boat-tailed grackle (Quiscalus major) is a passerine bird of the family Icteridae found as a permanent resident on the coasts of the southeastern United States. It is found in coastal saltwater marshes, and, in Florida, also on inland waters. The nest is a well-concealed cup in trees or shrubs near water; three to five eggs are laid. These birds forage on the ground, in shallow water, or in shrubs; they will steal food from other birds. They are omnivorous, eating insects, minnows, frogs, eggs, berries, seeds, and grain, even small birds.
View Wikipedia Record: Quiscalus major

Infraspecies

Quiscalus major alabamensis
Quiscalus major major
Quiscalus major torreyi
Quiscalus major westoni

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
6
 Unique & Vulnerable (100)
ED Score: 2.22611
EDGE Score: 1.17128
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  158 grams
Birth Weight [3]  7 grams
Female Weight [5]  111 grams
Male Weight [5]  206 grams
Weight Dimorphism [5]  85.6 %
Breeding Habitat [2]  Coastal saltmarshes, Freshwater marshes
Wintering Geography [2]  Non-migrartory
Wintering Habitat [2]  Coastal saltmarshes, Freshwater marshes
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore, Granivore
Diet - Endothermic [4]  10 %
Diet - Fish [4]  10 %
Diet - Invertibrates [4]  40 %
Diet - Scavenger [4]  10 %
Diet - Seeds [4]  30 %
Forages - Mid-High [4]  10 %
Forages - Understory [4]  20 %
Forages - Ground [4]  70 %
Clutch Size [6]  4
Clutches / Year [3]  1
Fledging [1]  22 days
Global Population (2017 est.) [2]  1,900,000
Incubation [3]  13 days
Mating System [7]  Polygyny
Maximum Longevity [3]  13 years

Ecoregions

Protected Areas

Prey / Diet

Consumers

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 5Post, W., JP Poston and GT Bancroft. 1996. Boat-tailed Grackle (Quiscalus major). In The Birds of North America, No. 207 (A. Poole and F. Gill, Eds.).The Academy of Natural Sciences: Philadel- phia; and The American Ornithologists' Union: Washington, DC
♦ 6Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 7Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 8Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 9Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0