Puerto Rican Sharp-shinned Hawk
The Puerto Rican sharp-shinned hawk, ''(Accipiter striatus venator)'', ''falcón de sierra'' or ''gavilán pecho rufo'' in Spanish, is an endemic subspecies of the North American sharp-shinned hawk, occurring only in Puerto Rico. Discovered in 1912 and described as a distinct sub-species, it has been placed on the United States Fish and Wildlife Service list of endangered species because of its rapidly dwindling population in Puerto Rico. It can be found in the Toro Negro State Forest.''Bosques de Puerto Rico: Bosque Estatal de Toro Negro.''
Hojas de Nuestro Ambiente. July 2008. ublication/Issue: P-030Puerto Rico D ...
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Sharp-shinned Hawk
The sharp-shinned hawk (''Accipiter striatus'') is a small hawk, with males being the smallest hawks in the United States and Canada, but with the species averaging larger than some Neotropical species, such as the tiny hawk. The taxonomy is far from resolved, with some authorities considering the southern taxa to represent three separate species: white-breasted hawk (''A. chionogaster''), plain-breasted hawk (''A. ventralis''), and rufous-thighed hawk (''A. erythronemius''). The American Ornithological Society keeps all four variations conspecific. Taxonomy The sharp-shinned hawk is sometimes separated into four species, with the northern group (''see distribution'') retaining both the scientific name and the common name: sharp-shinned hawk (''A. striatus''). In addition to the nominate taxon (''A. s. striatus''), it includes subspecies ''perobscurus'', ''velox'', ''suttoni'', ''madrensis'', ''fringilloides'', and ''venator''. The three remaining taxa, each considered a monoty ...
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Puerto Rican Juvenile Sharp-shinned Hawk
Puerto, a Spanish word meaning ''seaport'', may refer to: Places *El Puerto de Santa María, Andalusia, Spain *Puerto, a seaport town in Cagayan de Oro City, Philippines *Puerto Colombia, Colombia *Puerto Cumarebo, Venezuela *Puerto Galera, Oriental Mindoro, Philippines * Puerto La Cruz, Venezuela *Puerto Píritu, Venezuela *Puerto Princesa, Palawan, Philippines *Puerto Rico, an unincorporated territory of the United States *Puerto Vallarta, Mexico Others * ''Puerto Rico'' (board game) *Operación Puerto doping case See also * * Puerta (other) Puerta refers to the old original gates of the Walled City of Intramuros in Manila. Puerta may also refer to: People *Antonio Puerta, Spanish footballer *Alonso José Puerta, Spanish politician * Lina Puerta, American artist *Mariano Puerta, Arge ...

Endemic Birds Of Puerto Rico
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ...
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Accipiter
''Accipiter'' is a genus of birds of prey in the family Accipitridae. With 51 recognized species it is the most diverse genus in its family. Most species are called goshawks or sparrowhawks, although almost all New World species (excepting the northern goshawk) are simply known as hawks. They can be anatomically distinguished from their relatives by the lack of a procoracoid foramen. Two small and aberrant species usually placed here do possess a large procoracoid foramen and are also distinct as regards DNA sequence. They may warrant separation in the old genus ''Hieraspiza''.Olson (2006) Extant accipiters range in size from the little sparrowhawk (''A. minullus''), in which the smallest males measure long, span across the wings and weigh , to the northern goshawk (''A. gentilis''), in which the largest females measure long, span across the wings, and weigh . These birds are slender with short, broad, rounded wings and a long tail which helps them maneuver in flight. They ha ...
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List Of Endemic Fauna Of Puerto Rico
This is a list of the endemic fauna of Puerto Rico. This list is sorted in alphabetical order by the scientific name of the species, which are in parentheses. Birds *Yellow-shouldered blackbird (''Agelaius xanthomus'') *Puerto Rican parrot (''Amazona vittata'') * Green mango (''Anthracothorax viridis'') *Puerto Rican nightjar (''Caprimulgus noctitherus'') * Puerto Rican emerald (''Chlorostilbon maugeaus'') * Puerto Rican lizard‑cuckoo (''Coccyzus vieilloti'') * Puerto Rican pewee (''Contopus portoricenis'') *Adelaide's warbler (''Dendroica adelaidae'') * Elfin-woods warbler (''Dendroica angelae'') * Puerto Rican oriole (''Icterus portoricensis'') *Puerto Rican bullfinch (''Loxigilla portoricensis'') * Puerto Rican owl (''Gymnasio nudipes'') *Puerto Rican woodpecker (''Melanerpes portoricensis'') * Puerto Rican flycatcher (''Myiarchus antillarum'') * Puerto Rican tanager (''Nesospingus speculiferus'') * Puerto Rican spindalis (''Spindalis portoricensis'') * Puerto Rican tody ...
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Birds Of Puerto Rico
This is a list of the bird species recorded in the archipelago of Puerto Rico, which consists of the main island of Puerto Rico, two island municipalities off the east coast (Vieques, Puerto Rico, Vieques and Culebra, Puerto Rico, Culebra), three uninhabited islands off the west coast (Mona, Puerto Rico, Mona, Monito Island, Monito and Desecheo Island, Desecheo) and more than 125 smaller List of islands of Puerto Rico, cays and islands. The avifauna of Puerto Rico included a total of 385 species as of July 2022, according to ''Bird Checklists of the World''. Of them, 201 are Vagrancy (biology), accidental, two have been Local extinction, extirpated, and one is believed to be Extinction, extinct. Seventeen species are Endemism in birds, endemic. Non-native species are common; 43 listed here were Introduced species, introduced by humans. Individuals of many other species (mostly parrots, finches, and waxbills) are flying free, presumably after escaping or being released from captivi ...
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Thrasher
Thrashers are a New World group of passerine birds related to mockingbirds and New World catbirds. Like these, they are in the family Mimidae. There are 15 species in one large and 4 monotypic genera. These do not form a clade but are a phenetic assemblage. It is rather likely than not — though by no means robustly supported — that the sage thrasher is a basal lineage among a group also consisting of mockingbirds and '' Toxostoma'' thrashers. The Caribbean thrashers occupy varying positions in an assemblage consisting of them, the tremblers, and the New World catbirds. Here, the white-breasted thrasher appears to be quite basal though it is impossible to place it anywhere with certainty, whereas the pearly-eyed thrasher is probably quite close to the tremblers. (Hunt ''et al.'' 2001, Barber ''et al.'' 2004) Their common name describes the behaviour of these birds when searching for food on the ground: they use their long bills to "thrash" through dirt or dead lea ...
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Tanagers
The tanagers (singular ) comprise the bird family Thraupidae, in the order Passeriformes. The family has a Neotropical distribution and is the second-largest family of birds. It represents about 4% of all avian species and 12% of the Neotropical birds. Traditionally, the family contained around 240 species of mostly brightly colored fruit-eating birds. As more of these birds were studied using modern molecular techniques, it became apparent that the traditional families were not monophyletic. '' Euphonia'' and '' Chlorophonia'', which were once considered part of the tanager family, are now treated as members of the Fringillidae, in their own subfamily ( Euphoniinae). Likewise, the genera '' Piranga'' (which includes the scarlet tanager, summer tanager, and western tanager), ''Chlorothraupis'', and '' Habia'' appear to be members of the cardinal family, and have been reassigned to that family by the American Ornithological Society. Description Tanagers are small to medium-s ...
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Courtship Display
A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. These behaviors often include ritualized movement ("dances"), vocalizations, mechanical sound production, or displays of beauty, strength, or agonistic ability. Male display In some species, males will perform ritualized movements to attract females. The male six-plumed bird-of-paradise ( ''Parotia lawesii'') exemplifies male courtship display with its ritualized "ballerina dance" and unique occipital and breast feathers that serve to stimulate the female visual system. In ''Drosophila subobscura,'' male courtship display is seen through the male's intricate wing scissoring patterns and rapid sidestepping. These stimulations, along with many other factors, result in subsequent copulation or rejection. In other species, males may exhibit courtship displays that serve as both visual and auditory sti ...
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Puerto Rican Sharp-shinned Hawk Sitting On Branch With Head Down Eating
Puerto, a Spanish word meaning ''seaport'', may refer to: Places *El Puerto de Santa María, Andalusia, Spain *Puerto, a seaport town in Cagayan de Oro City, Philippines *Puerto Colombia, Colombia *Puerto Cumarebo, Venezuela *Puerto Galera, Oriental Mindoro, Philippines * Puerto La Cruz, Venezuela *Puerto Píritu, Venezuela *Puerto Princesa, Palawan, Philippines *Puerto Rico, an unincorporated territory of the United States *Puerto Vallarta, Mexico Others * ''Puerto Rico'' (board game) *Operación Puerto doping case See also * * Puerta (other) Puerta refers to the old original gates of the Walled City of Intramuros in Manila. Puerta may also refer to: People *Antonio Puerta, Spanish footballer *Alonso José Puerta, Spanish politician * Lina Puerta, American artist *Mariano Puerta, Arge ...

Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimm ...
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Breeding Pair
Breeding pair is a pair of animals which cooperate over time to produce offspring with some form of a bond between the individuals.Gaston, A. J.The evolution of group territorial behavior and cooperative breeding" The American Naturalist 112.988 (1978): 1091-1100. For example, many birds mate for a breeding season or sometimes for life. They may share some or all of the tasks involved: for example, a breeding pair of birds may split building a nest, incubating the eggs and feeding and protecting the young. The term is not generally used when a male has a harem of females, such as with mountain gorillas. True breeding pairs are usually found only in vertebrates, but there are notable exceptions, such as the Lord Howe Island stick insect. True breeding pairs are rare in amphibians or reptiles, although the Australian Shingleback is one exception with long-term pair-bonds. Some fish form short term pairs and the French angelfish is thought to pair-bond over a long term. True bre ...
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