Question: What is the scientific name for the type of bird Scrappy Moc is?

Context paragraphs:
Author citation (zoology): In zoological nomenclature, author citation refers to listing the person (or team) who first makes a scientific name of a taxon available.  This is done in a scientific publication while fulfilling the formal requirements under the International Code of Zoological Nomenclature, hereinafter termed "the Code".  According to the Code, "the name of the author does not form part of the name of a taxon and its citation is optional, although customary and often advisable" (Article 51.1), however Recommendation 51A suggests: "The original author and date of a name should be cited at least once in each work dealing with the taxon denoted by that name.  This is especially important in distinguishing between homonyms and in identifying species-group names which are not in their original combinations".  For the purpose of information retrieval, the author citation and year appended to the scientific name, e.g. genus-species-author-year, genus-author-year, family-author-year, etc., is often considered a "de facto" unique identifier, although for a number of reasons discussed below, this usage may often be imperfect.

L-number: An L-number is not a formal scientific designation, but it allows people to identify various loricariid catfish by a "common name" before the fish is officially described.  When a loricariid receives an official scientific name, the L-number (or numbers) is retired.  and best practice is then to use the scientific name.

Scrappy Moc: Scrappy is the mascot of the University of Tennessee at Chattanooga.  He is a mockingbird, the state bird of Tennessee.  Scrappy is named after the legendary, former Chattanooga football coach, A.C. "Scrappy" Moore.

Nomen novum: In biological nomenclature, a nomen novum (Latin for "new name"), new replacement name (or replacement name, new substitute name, substitute name) is a technical term.  It indicates a scientific name that is created specifically to replace another scientific name, but only when this other name can not be used for technical, nomenclatural reasons (for example because it is a homonym: it is spelled the same as an existing, older name); it does not apply when a name is changed for taxonomic reasons (representing a change in scientific insight).  It is frequently abbreviated, "e.g." "nomen nov.", "nom.  nov.", or more explicitly by the rank specified, "e.g." "superordo nov."

Synonym (taxonomy): In scientific nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name, although the term is used somewhat differently in the zoological code of nomenclature.  For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called "Pinus abies".  This name is no longer in use: it is now a synonym of the current scientific name which is "Picea abies".

Red-backed bearded saki: The red-backed bearded saki ("Chiropotes chiropotes") is a species of bearded saki, a type of New World monkey, from South America.  It is found north of the Amazon River and east of the Branco River in Brazil and the Guianas.  It is possible the scientific name "C. chiropotes" belongs to the more westerly brown-backed bearded saki, in which case the correct scientific name for the red-backed bearded saki would be "C. sagulatus".

Straneck's tyrannulet: The Straneck's tyrannulet ("Serpophaga griseicapilla"), also known as the monte tyrannulet and grey-crowned tyrannulet, is a small species of bird in the family Tyrannidae.  It is found in woodland and open habitats with scatted bushes and trees in south-central South America, but the details are still unclear.  It breeds in Argentina, but may also breed in Bolivia.  In addition to these countries, it has been recorded as a non-breeding visitor in Paraguay, and possibly Brazil and Uruguay (it is unclear if it is a regular non-breeding visitor or only an accidental visitor to the last two countries).  Visually it closely resembles the white-crested tyrannulet, but its voice is distinctive and its tail shorter.  Considerable taxonomic confusion has surrounded this species, which for a period mistakenly was referred to by the scientific name "Serpophaga griseiceps", a junior synonym of "Serpophaga munda".  Consequently, the Straneck's tyrannulet only received its scientific name in 2007 despite having been known since the early 1990s.

Daito wren: The Daito wren ("Troglodytes troglodytes orii") is a controversial subspecies of the Eurasian wren.  It is known only by the type specimen, a male collected in 1938 on Minami Daitō-jima, the main island of the Daito Archipelago east of Okinawa.  Yamashina described the bird as a new subspecies after comparing it with 114 specimens from surrounding areas and under the impression that the Eurasian wren is a fairly sedentary bird, not liable to be drifted astray over long distances.  Its scientific name honors Yamashina's specimen collector, Hyojiri Orii.

Rubeho akalat: The Rubeho akalat ("Sheppardia aurantiithorax") is a member of the Old World flycatcher family, (Muscicapiidae), known from the Eastern Arc of Tanzania.  Akalats trapped in 1989 here were assumed to be an isolated population of Iringa akalat which occurs c. 150 km to the south, but further specimens collected in 2000 led to the description of the bird as a new species.  The bird's English name relates to its type locality, Rubeho, Morogoro; the scientific name to the ochraceous colour on its throat and upper breast.

Northern mockingbird: The northern mockingbird ("Mimus polyglottos") is the only mockingbird commonly found in North America.  This bird is mainly a permanent resident, but northern birds may move south during harsh weather.  This species has rarely been observed in Europe.

Supporting paragraphs: Scrappy Moc Northern mockingbird
Answer: Mimus polyglottos