0_Wizard
I have studied  Parrots, also known as psittacines in school for a year now
Parrots, also known as psittacines , are birds of the roughly 393 species in 92 genera that make up the order Psittaciformes, found in most tropical and subtropical regions.
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Parrot
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Parrot
Parrots, also known as psittacines , are birds of the roughly 393 species in 92 genera that make up the order Psittaciformes, found in most tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere, as well. The greatest diversity of parrots is in South America and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet.
International parrot trade
The international trade in parrots is a lucrative enterprise, and forms an important part of the international wildlife trade. As parrots have become increasingly endangered, many countries have placed restrictions on the trade and/or prohibited the trade altogether. Despite the restriction on trade in many countries however, the market still operates both legally and illegally. Approximately 2,600 of the more than 9,600 species of birds in existence are subject to trade, and 20% of these species belong to the order Psittaciformes (parrots). In 2009, 3.9% of households in the United States owned birds, which equated to 11,199,000 pet birds in total, and 75% of these belonged to the Psittaciforme order.
Aviculture
Aviculture is the practice of keeping and breeding birds and the culture that forms around it. Aviculture is generally focused on not only the raising and breeding of birds, but also on preserving avian habitat, and public awareness campaigns. There are various reasons that people get involved in aviculture. Some people breed birds to preserve a species. Some people breed parrots as companion birds, and some people breed birds to make a profit. Aviculture  Aviculture is the practice of keeping birds (Class Aves) in captivity using controlled conditions, normally within the confines of an aviary, for hobby, business, research & conservation purposes.
Bird intelligence
Bird intelligence deals with the definition of intelligence and its measurement as it applies to birds. The difficulty of defining or measuring intelligence in non-human animals makes the subject difficult for scientific study. Anatomically, birds (the 10,000 species of which are the direct living descendants of, and so are, theropod dinosaurs) have relatively large brains compared to their head size. The visual and auditory senses are well developed in most species, while the tactile and olfactory senses are well realized only in a few groups. Birds communicate using visual signals as well as through the use of calls and song.
Companion parrot
A companion parrot is a parrot kept as a pet that interacts abundantly with their human counterpart. Generally, most species of parrot can make excellent companions. Species of parrots that are kept as companions include large parrots, such as amazons, African greys, cockatoos, eclectus, hawk-headed parrots, and macaws; mid-sized birds, such as caiques, conures, quakers, "Pionus", "Poicephalus", rose-ringed parakeets, and rosellas; and many of the smaller types, including "Brotogeris", budgies, cockatiels, parakeets, lovebirds, parrotlets and lineolated parakeets. Some species of lories and lorikeets are kept as pets but are quite messy, and often more popular as aviary birds.
List of parrots
Parrots, also known as psittacines (), are the 402 species of birds that make up the order Psittaciformes, found in most tropical and subtropical regions, of which 387 are extant. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere as well. The greatest diversity of parrots is in South America and Australasia. The Cacatuoidea are quite distinct, having a movable head crest, a different arrangement of the carotid arteries, a gall bladder, differences in the skull bones, and lack the Dyck texture feathers that—in the Psittacoidea—scatter light to produce the vibrant colours of so many parrots.
Belize Bird Rescue
Belize Bird Rescue (BBR) is an avian rescue and rehabilitation centre in Belize. It is a non-governmental and non-profit organization, and is Belize's only multi-species avian rescue and rehabilitation centre. It operates wholly within Belize under license and support from the Government of Belize Forest Department. The main focus of the organisation is the rehabilitation for release of wild-caught psittacines (parrots) liberated from the illegal local pet trade. As of July 2017, Belize Bird Rescue has returned more than 450 ex-captive parrots to the wild. Additionally, the organisation rescues and rehabilitates injured and orphaned resident and migratory birds of all species, and provides sanctuary or long-term care for non-releasable birds.
1_Apprentice
That's very interesting! They seem like smart birds, is that correct?
0_Wizard
They are very smart and the order is subdivided into three superfamilies
The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots).
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Parrot
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Glutathione S-transferase
Glutathione "S"-transferases (GSTs), previously known as ligandins, comprise a family of eukaryotic and prokaryotic phase II metabolic isozymes best known for their ability to catalyze the conjugation of the reduced form of glutathione (GSH) to xenobiotic substrates for the purpose of detoxification. The GST family consists of three superfamilies: the cytosolic, mitochondrial, and microsomal—also known as MAPEG—proteins. Members of the GST superfamily are extremely diverse in amino acid sequence, and a large fraction of the sequences deposited in public databases are of unknown function. The Enzyme Function Initiative (EFI) is using GSTs as a model superfamily to identify new GST functions.
Clymeniida
Clymeniida is an order of ammonoid cephalods from the Upper Devonian characterized by having an unusual dorsal siphuncle. They measured about in diameter and are restricted to Europe, North Africa, and possibly Australia. Clymeniids produced a variety of shells ranging from smooth to ribbed and spinose and from evolute with all whorls exposed to strongly involute with the last whorl covering the previous. Some were even triangular as viewed from the side (along the axis of coiling). With the exception of the first few chambers, all have a siphuncle that runs along the dorsal margin, along the inside of the coils, opposite that of most ammonoids.
Parrot
Parrots, also known as psittacines , are birds of the roughly 393 species in 92 genera that make up the order Psittaciformes, found in most tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere, as well. The greatest diversity of parrots is in South America and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet.
Flustrina
Flustrina is a suborder under the order Cheilostomata of gymnolaematan Bryozoa (sea mats). The structure of the individual zooids is generally simple, a box-like chamber of calcium carbonate, the polypides reaching out through an uncalcified flexible frontal wall, often surrounded by numerous spines. Like in other gymnolaematans, their lophophore is protruded by muscles that pull on the frontal wall of the zooid. In some treatments, the Flustrina are restricted to the superfamilies Calloporoidea and Flustroidea and ranked as infraorder alongside the Cellulariomorpha which contain the other three superfamilies.
Catalytic triad
A catalytic triad is a set of three coordinated amino acids that can be found in the active site of some enzymes. Catalyitic triads are most commonly found in hydrolase and transferase enzymes (e.g. proteases, amidases, esterases, acylases, lipases and β-lactamases). An Acid-Base-Nucleophile triad is a common motif for generating a nucleophilic residue for covalent catalysis. The residues form a charge-relay network to polarise and activate the nucleophile, which attacks the substrate, forming a covalent intermediate which is then hydrolysed to release the product and regenerate free enzyme. The nucleophile is most commonly a serine or cysteine amino acid, but occasionally threonine or even selenocysteine.
Selenizone
A selenizone (from the Greek "selene" meaning "moon", and "zone" meaning "girdle") is an anatomical structure that exists in the shells of some families of living sea snails: the slit shells, the little slit shells and the abalones, which are marine gastropod mollusks from ancient lineages. It is a spiral band of crescentric growth lines or threads (lunulae) on the shell surface due to the semicircular end of a notch or slit on the outer lip. A structure of the same type exists in several fossil groups of mollusks, including all the fossil families of slit shells, as well as three superfamilies of what may have been gastropods, but may possibly have been monoplacophorans or paragastropods instead.
Protein superfamily
A protein superfamily is the largest grouping (clade) of proteins for which common ancestry can be inferred (see homology). Usually this common ancestry is inferred from structural alignment and mechanistic similarity, even if no sequence similarity is evident. Sequence homology can then be deduced even if not apparent (due to low sequence similarity). Superfamilies typically contain several protein families which show sequence similarity within each family. The term "protein clan" is commonly used for protease superfamilies based on the MEROPS protease classification system. Superfamilies of proteins are identified using a number of methods.