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Topic: Boat-tailed Grackle


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In the News (Wed 30 May 12)

  
 Boat-tailed Grackle - Wikipedia, the free encyclopedia
The Boat-tailed Grackle was once considered the same species as the Great-tailed Grackle.
The Boat-tailed Grackle, Quiscalus major, is a large blackbird.
The 37-cm long adult female is shorter tailed, and tawny-brown in colour apart from the darker wings and tail.
en.wikipedia.org /wiki/Boat-tailed_Grackle   (239 words)

  
 GREAT-TAILED GRACKLE REPRODUCTION IN SOUTHCENTRAL LOUISIANA
SUMMARY Data were collected on 184 nests of the Great-tailed Grackle (Quiscalus mexicanus) at LaHayes' Lake and Miller's Lake both near Vidrine, Louisiana, from 1976 to 1978.
Grackle nests were examined weekly, and occasionally biweekly, to reduce the chances of nest and colony abandonment that often occurs when nesting birds are disturbed (Pratt et al.
Grackles normally arrived in early March and began nest construction, primarily on duckblinds, in late March.
elibrary.unm.edu /sora/JFO/v052n04/p0325-p0331.html   (4949 words)

  
 Boat-tailed Grackle
The Boat-tailed Grackle is a year-round resident along coasts from New Jersey south and west to Louisiana.
The Boat-tailed Grackle and its close relative the Great-tailed Grackle were thought to be a single species until it was found that both nest in southwestern Louisiana without interbreeding.
The Boat-tailed Grackle has a very long and keel-shaped tail.
www.shawcreekbirdsupply.com /boattailed_grackle_info.htm   (147 words)

  
 Grackle Range Expansion
The Boat-tailed Grackle (Quiscalus major) is a characteristic species of brackish coastal habitats along the southeastern Atlantic and Gulf of Mexico coastlines of the United States.
From 1902 to 1957 ornithologists considered Boat-tailed and Great-tailed grackles the same species, as they are morphologically similar and can be difficult to separate in the field in their limited range of overlap.
For Boat-tailed Grackles along the East Coast, it may be that relatively mild winters in mid-century allowed this formerly sub-tropical species to survive northward.
www.birdsource.org /features/grackles   (507 words)

  
 EXPERIENCES IN BANDING BOAT-TAILED GRACKLES
As grackles often have breeding colonies within city limits, they are relatively tame and accustomed to feed on a wide variety of food provided by man. No pre-baiting was therefore necessary to attract them to intended capture sites.
At other times of the year, grackles are quite wary of traps, a fact which probably is the reason why "the boys of the streets say they cannot trap or catch him [C. mexicanus] in a snare" (Sennerr, 1878).
The small number of females caught could perhaps be attributed to the heightened aggressiveness of grackle males, which, in turn, is a consequence of their non-monogamous mating system (Selander, 1965; Selander and Dickerman, 1963).
elibrary.unm.edu /sora/JFO/v042n02/p0106-p0109.html   (2922 words)

  
 grackle on Encyclopedia.com
The bronzed grackle, which interbreeds with the purple, is found further inland and W to the Rocky Mts.; in the South are found the Florida and boat-tailed grackles, in Texas and Mexico the great-tailed grackles, or jackdaws.
The plumage of the purple, or common, grackle of the Atlantic coastal region is black with metallic hues, iridescent in the sunlight.
Grackles are classified in the phylum Chordata, subphylum Vertebrata, class Aves, order Passeriformes, family Icteridae.
www.encyclopedia.com /html/g1/grackle.asp   (479 words)

  
 Age Determination and Molt in the Boat-tailed Grackle
In the Boat-tailed Grackle, sexual dimorphism in size approaches an extreme among icterids illustrated also by the oropendolas Zarhynctrus and Gymnostinops, that is, among members of the family in which mating is polygamous or promiscuous.
LITERATURE CITED Beal, F. Food of the bobolink, blackbirds, and grackles.
Molt was proceeding in the wing and tail and, to some extent, on the head, but molt of the sternal region apparently had stopped, despite the fact that a large roedial area of juvenal feathers remained.
elibrary.unm.edu /sora/Condor/files/issues/v060n06/p0355-p0376.html   (15705 words)

  
 Grackle - Wikipedia, the free encyclopedia
The grackles are gregarious passerine birds in the Icterid family.
www.wikipedia.org /wiki/Grackle   (44 words)

  
 Boat-tailed Grackle Breeding Male
Boat-tailed Grackle: Similar to this bird is the Great-tailed grackle which is larger and has bright yellow eyes with a longer bill, flatter crown and is found inland west of Mississippi River.
Boat-tailed Grackle: Coastal salt marshes and barrier and sea islands, around ponds and streams (Florida peninsula), farmland, towns and cities.
Boat-tailed Grackle: Eats small fish, frogs, snails, aquatic and terrestrial insects, shrimp, small bird, eggs and nestlings of other bids, small reptiles, fruit, berries, grain, and seeds.
identify.whatbird.com /obj/523/_/Boat-tailed_Grackle_Breeding_Male.aspx   (728 words)

  
 The Boat-tailed Grakle, or Great Crow Blackbird
It is then that you ought to see the Boat-tailed Grakle, for at that period its plumage displays the richest gloss, and its tail, which, after the breeding season, is no longer navicular, is deeply incurved towards the centre.
Female much smaller, with the tail shorter, the plumage unglossed beneath, and but slightly glossy above, the upper parts dusky, with slight tints of green and blue; the head and neck dull brown; the lower parts light yellowish-brown, the tibial feathers and lower tail-coverts dusky.
During the breeding season they return to their stand, after a chase, with a quivering motion of the wings, and the tail is more deeply incurved than at any other season.
www.abirdshome.com /Audubon/VolIV/00365.html   (2426 words)

  
 Auk, The: FATE OF GRACKLE (QUISCALUS SPP.) DEFENSES IN THE ABSENCE OF BROOD PARASITISM: IMPLICATIONS FOR LONG-TERM PARASITE-HOST COEVOLUTION
Egg rejection in the Boat-tailed Grackle has apparently been retained in the absence of parasitism for as long as 800,000 years since it split from the Great-tailed Grackle.
The Common Grackle (Q. quiscula), which lays the most variable eggs among the grackles, also has the lowest level of egg rejection-which is consistent with the argument that it may have lost most of its rejection behavior in the absence of parasitism.
With extreme intraclutch egg-variation, Common Grackles may be more likely to reject their own oddly colored eggs, which would select against rejection behavior in the absence of parasitism.
www.findarticles.com /p/articles/mi_qa3793/is_200410/ai_n9434473   (1288 words)

  
 Boat-tailed Grackle
In Florida, Boat-tailed Grackles are usually found around coastal salt marshes and inland lakes and streams.
The Boat-tailed Grackle is large iridescent blackbird, much larger than the Common Grackle.
It averages 16-17 inches in length and has a long, wide tail, which is partially folded and thought to resemble the keel of a boat.
www.zinnysworld.com /boat-tailed_grackle.htm   (155 words)

  
 Grackle
In America we have the purple grackle or crow blackbird, the Texas or boat-tailed grackle, and the rusty grackle.
In India it applies to two different birds called the religious birds,--the religious grackle and the paradise grackle.
www.factopia.com /aiton-encyclopedia-vol2/grackle.htm   (59 words)

  
 Boat Tailed Grackle on Fort Monroe
Boat-tailed grackles have a very long “v” shaped tail which creases in flight, hence the name “boat-tailed”.
The common grackle has a green/blue or purple iridescent tinted black plumage with a glossy purplish head, neck and breast with the female of the species, slightly smaller and duller colored.
Grackles are aggressive birds that will colonize in large numbers and are very noisy.
www.monroe.army.mil /casemate/stack/061104grackle.htm   (607 words)

  
 Boat Tailed Grackle
For Boat-Tailed Grackles, it is the female that does the majority of the work when it comes to raising a family.
Boat-Tailed Grackles repeat this process two or three times each year.
She builds the nest out of dry grass, twigs, moss and feathers, in reed beds, shrubs or trees that are near water.
www.pelicanman.org /html/pmbs3_056.htm   (94 words)

  
 Birds of the Upper Texas Coast - Great-tailed Grackle
Great-tailed grackle is only slighly larger than the mostly coastal Boat-tailed Grackle.
Great-tailed Grackles are abundant permanent residents of the UTC.
Adult male Great-tailed grackles can be distinguished from common grackles by their all over purple iridecense, larger size, and large keel shaped tail.
www.texasbirding.net /birds/grt-tail.htm   (115 words)

  
 Boat-tailed Grackle Species Account - Florida Breeding Bird Atlas
Boat-tailed Grackles are resident along the eastern and Gulf coasts of the United States, from New York to southeastern Texas, and throughout much of Florida (Howell 1932, AOU 1983).
Although the Boat-Tailed Grackle is primarily a coastal species of the salt and brackish marsh, in Florida it is also found near lakes, rivers, and freshwater marshes.
Boat-tailed Grackle Species Account - Florida Breeding Bird Atlas
wld.fwc.state.fl.us /bba/BTGR.htm   (317 words)

  
 The Wakodahatchee Wetlands Boat-tailed Grackle (Quiscalus major)
Boat Tailed grackles have been known to pick the insects directly off the backs of cattle.
The Boat-Tailed Grackle roosts communally at night in the bulrushes at Wakodahatchee.
Tail is very long and is keel shaped in flight.
www.pbcwater.com /wakodahatchee/boattailed_grackle.htm   (224 words)

  
 Birds of Nova Scotia -Great-tailed Grackle
Three earlier sight records of large grackles remain problematic as a result of the more recent splitting of the former Boat-tailed Grackles into the very similar Boat-tailed and Great-tailed species (see Remarks).
Remarks The Great-tailed Grackle is resident from the southwestern United States to Central Mexico but is rapidly spreading northward.
Thus detailed descriptions of size, tail and bill shape, iridescence patterns in males and coloration of back and breast in females are required to discriminate the two species.
museum.gov.ns.ca /mnh/nature/nsbirds/bns0394.htm   (275 words)

  
 Boat-tailed Grackle
Boat-tailed Grackles build their massive nests of grasses in colonies between upright stalks of marsh vegetation, in bushes such as mangrove, or in the top branches of trees that grow on the chenieres.
The Boat-tailed Grackle in Louisiana has brown eyes, a feature that readily sets it apart from the Great-tailed Grackle, in which the eye color is bright golden yellow.
The female is a nondescript tawny brown, except for the wings and tail, which are blackish brown.
www.losbird.org /labirds/btgr.htm   (440 words)

  
 All About Birds
A large, long-tailed blackbird, the Boat-tailed Grackle is found exclusively along the Gulf and Atlantic coasts of the United States.
The Gulf Coast form of Boat-tailed Grackle, the form most likely to be in the range of Great-tailed, has dark eyes while the eyes of a Great-tailed Grackle are yellow.
The Boat-tailed Grackle has an odd mating system: harem defense polygyny.
www.birds.cornell.edu /programs/AllAboutBirds/BirdGuide/Boat-tailed_Grackle_dtl.html   (476 words)

  
 eNature: FieldGuides: Species Detail
Discussion This species and its close relative the Great-tailed Grackle were thought to be a single species until it was found that both nest in southwestern Louisiana without interbreeding.
Great-tailed Grackle of western Louisiana and Texas has iridescent purple back and breast, and always has yellow eyes.
Harsh jeeb-jeeb-jeeb-jeeb, unlike the whistles and clucks of the Great-tailed Grackle.
www.enature.com /fieldguide/showSpeciesRECNUM.asp?recnum=BD0337   (254 words)

  
 Osprey Web Archive: Re: Boat-tailed Grackle
I believe the Boat-tailed Grackle in question was reported to be in Upper Marlboro, Prince George's County, in which case it deserves immaculate documentation.
marshhawk.home.att.net /1999-1/5005.html   (47 words)

  
 Birds of Eastern North America - Boat-tailed Grackles
Birds of Eastern North America - Boat-tailed Grackles
Boat-tail Grackles are rarely if ever found far from water.
Their usual notes are hoarse, rather force whistles; more rarely they utter a singular rolling call, which bears a close resemblance to the sound produced by a Coot in pattering over the water.
www.aboutbirds.org /B/boat_tailed_grackle.htm   (220 words)

  
 Osprey Web Archive: Re: Boat-tailed Grackle
The boat-tailed grackle was seen while driving along the road and no field notes were taken.
Because many of you have been debating over whether or not the boat-tailed grackle in Upper Marlboro should be reported, I thought I should fill you in on the full details I noted to Phil Davis.
Technically it could have been a Great-tailed Grackle.
marshhawk.home.att.net /1999-1/5006.html   (151 words)

  
 Birds of the Upper Texas Coast - Boat-tailed Grackle
The Boat-tailed Grackles of the Gulf Coast have dark eyes while the Great-tailed Grackles of the Gulf Coast have bright yellow eyes.
A year round resident of the coastal marshes of the UTC, the Boat-tailed Grackle is rarely found far from saltwater.
Boat-tailed Grackle can be told from Great-tailed grackle by the color of the eye.
www.texasbirding.net /birds/boattail.htm   (154 words)

  
 BirdForum - Help with Houston Birds
Boat-tailed and Great-tailed Grackles utilize a lot of the same habitats and food sources, I see no reason why they would not mix, although I haven't witnessed it.
Note lack of forehead (less round compared to boat-tailed), and the purple head vs blue body.
The head also looks more rounded than the great-tailed grackles I've seen.
www.birdforum.net /showthread.php?t=27553   (851 words)

  
 Grackle - grackel (common grackle, bird grackle, grackle great tailed, grackle purple, boat grackle tailed, baby grackle, grackel)
Grackle - grackel (common grackle, bird grackle, grackle great tailed, grackle purple, boat grackle tailed, baby grackle, grackel)
www.meta-spell.com /g/grackel.html   (18 words)

  
 * Great-tailed Grackle - (Bird): Definition
See also: Grackle, Boat-tailed Grackle, Blackbird, Cowbird, Terns
A variety of blackbirds have always been a part of Imperial Valley birdlife, the Great-Tailed Grackle however is fairly new...
Their predators include raccoons, coyotes and great-tailed grackles, which destroy their eggs and eat the young birds...
www.mimihu.com /bird/greattailed_grackle.html   (150 words)

  
 BirdForum - Your I.D. skills needed
The body size, shape and plumage coloring look perfect for Boat-tailed Grackle, but that beak / forehead don't look close.
I know you are pretty familiar with grackles from a previous post.
I doubt that the divide between dark-eyed and pale eyed birds is a sharp one.
www.birdforum.net /showthread.php?p=91161   (747 words)

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