Sibley and Ahlquist's taxonomy has included all the members of the Procellariiformes inside the Procellariidae and that family in an enlarged Ciconiiformes, but this change has not been widely accepted.

in 1994 found mtDNA cytochrome b sequence data to agree with Sibley and Ahlquist's previous treatment.

Thamnophilidae was removed from Formicariidae, leaving behind the antthrushes and antpittas, due to recognition of differences in the structure of the breastbone ( sternum ) and syrinx, and Sibley and Ahlquist's examination of DNA-DNA hybridisation.

According to Sibley and Ahlquist's DNA-DNA hybridization studies the Tyranni can be divided into three suborders: Acanthisittides, Eurylaimides, and Tyrannides.

Their relationship with the Australian radiation of passerines was suggested by S. A. Parker on the basis of egg colour, nest structure and nestling plumage, and their position in this radiation was vindicated by Sibley and Ahlquist's DNA-DNA hybridization studies.

Sibley and Ahlquist's DNA-DNA hybridisation studies placed the robins in a Corvida parvorder comprising many tropical and Australian passerines including pardalotes, fairy-wrens and honeyeaters as well as crows.

The Sibley-Monroe checklist was a landmark document in the study of birds conducted by Charles Sibley and Burt Monroe.

Perhaps the " high-water mark " of phenetics were the DNA-DNA hybridization studies by Charles G. Sibley, Jon E. Ahlquist and Burt L. Monroe Jr., from which resulted the 1990 Sibley-Ahlquist taxonomy for birds.

The use of techniques such as DNA-DNA hybridization to study evolutionary relationships was pioneered by Charles Sibley and Jon Edward Ahlquist resulting in what is called the Sibley-Ahlquist taxonomy.

In their pioneering DNA-DNA hybridisation work, Sibley and Ahlquist found that the genetic difference between the eared-nightjars and the typical nightjars was, in fact, greater than that between the typical nightjars and the nighthawks of the New World.

However, the resolution of the DNA-DNA hybridization technique used by Sibley & Ahlquist was not sufficient to properly resolve the relationships in this group, and indeed it appears as if the Charadriiformes consititute a single large and very distinctive lineage of modern birds of their own.

Molecular studies such as DNA-DNA hybridization ( Sibley & Ahlquist, 1990 ) and sequence analyses fail to resolve the relationships of grebes properly due to insufficient resolution in the former and long-branch attraction in the latter.

Sibley & Ahlquist ( 1990 ) united the " Old World warblers " with the babblers and other taxa in a superfamily Sylvioidea as a result of DNA-DNA hybridisation studies.

This was confirmed by Sibley & Ahlquist ( 1990 ) based on DNA-DNA hybridization and subsequently by Paton et al.

Sibley and Ahlquist furthermore removed button-quails ( Turnicidae ) from the Gruifomes based on large DNA-DNA hybridization distances to other supposed Gruiformes.

Initial mtDNA cytochrome b sequence analysis ( Mariaux & Braun 1996 ) agreed with earlier morphological ( Cracraft 1981 ) and DNA-DNA hybridization ( Sibley & Ahlquist 1990 ) studies insofar as that the oilbird and the frogmouths seemed rather distinct.

By the early 1970s Sibley was pioneering DNA-DNA hybridisation studies, with the aim of discovering, once and for all, the true relationships between the modern orders of birds.

The relationship of the Petroicidae to other bird families is uncertain ; Sibley and Alquist's DNA-DNA hybridisation studies had placed them in the Corvoidea ( a huge group that includes the shrikes, crows and jays, butcherbirds, woodswallows, drongos, cuckoo-shrike, fantails, monarch flycatchers and many others ).

DNA-DNA hybridization and RAG-1 sequence data places it as a wader related to the jacanas ( Sibley & Ahlquist 1990, Paton et al.

However, the grouping of Sibley & Monroe ( besides leaving the subfamily rank vacant ) is overly coarse due to methodological drawbacks of their DNA-DNA hybridization technique and most of their proposed revisions of taxonomic rank have not been accepted ( see for example Ciconiiformes ).

Charles Sibley and Jon Ahlquist, pioneers of the technique, used DNA-DNA hybridization to examine the phylogenetic relationships of avians ( the Sibley-Ahlquist taxonomy ) and primates.

On the other hand, DNA-DNA hybridization ( Sibley & Ahlquist 1990 ) placed the white-eyes closer to Sylvia.

The Bearded Reedling tended to appear close to larks in phylogenies based on e. g. DNA-DNA hybridization ( Sibley & Ahlquist 1990 ), or on mtDNA cytochrome b and nDNA c-myc exon 3, RAG-1 and myoglobin intron 2 sequence data ( Ericson & Johansson 2003 ).

The Sibley-Ahlquist taxonomy of birds, based upon DNA-DNA hybridization, suggested that the Limpkin's closest relatives were the Heliornithidae finfoots, and Sibley and Monroe even placed the species in that family in 1990.

Sibley and Ahlquist in 1990 considered it likely to be a basal cuckoo based on DNA-DNA hybridization.

On the basis of the DNA-DNA hybridization studies of Sibley and Alhquist its closest relatives have now been identified as the leafbirds.

* 1981 – Sibley and Ahlquist use DNA-DNA hybridisation to determine degrees of genetic similarity between species.

Sibley developed an interest in hybridisation and its implications for evolution and taxonomy and, in the early 1960s he began to focus on molecular studies: of blood proteins, and then the electrophoresis of egg-white proteins.

With the new insights generated by the DNA-DNA hybridisation studies of Sibley and his co-workers toward the end of the 20th century, however, it became clear that these apparently unrelated birds were all descended from a common ancestor: the same crow-like ancestor that gave rise to the drongos.

In January 1991 ( often listed as 1990 ), Charles Sibley and Ahlquist published Phylogeny and Classification of Birds, which presented a new phylogeny for birds based on DNA-DNA hybridisation techniques, known as the Sibley-Ahlquist taxonomy.

Previous molecular studies ( e. g. Sibley & Ahlquist 1990, Barker et al.

Sibley was born in Sutton, Massachusetts, and after completing preparatory studies, he graduated from the College of Rhode Island and Providence Plantations ( now Brown University ) at Providence in 1794.

* Alard's Ten studies for violin with accompaniment of a second violin Op. 10 Score from Sibley Music Library Digital Scores Collection

This group was proposed based on the phenetic DNA-DNA hybridization studies of Charles Sibley et al .. A more modern definition of a monophyletic Meliphagoidea based on cladistic analysis was made by ornithologists at the American Museum of Natural History.

It was long regarded a subspecies of the Manx Shearwater ; see there for more on the Puffinus puffinus superspecies ; following an initial split it was held to be a subspecies of the " Mediterranean Shearwater " ( Sibley & Monroe 1990 ) for nearly ten more years, until it was resolved to be a distinct species, separate from the Yelkouan Shearwater ( Wink et al.

On reaching the top of Big Mound, Sibley could see the Indian warriors retreating, guarding the women and children of the Indian camp fleeing westward with their possessions.

Esse quam videri is the motto used on the coats of arms of the following families: Acraman, Adams, Allies, Bakewell, Barnard, Beadon, Bostock, Bourne, Bowen, Bowne, Breamore, Brownlee, Brownlow, Cady, Cambria, Roy Clarke, Clavering, Cook, Coutts, Crawley, Creer, Croft, Crofts, Dickinson, Downes, Frank, Harmer, Halliday, Hamill ( O ' hAdhmaill, O ' hAghmaill, Hammill ), Hannum, Henshaw, Hood, Houk, Isserman, Ivey, Longley, McManners, Manning, Miller zu Aichholz, Panon-Desbassayns de Richemont, Proud, Partridge family coat of arms, see A genealogical and heraldic dictionary of the landed gentry of England ..., Volume 2 By Sir Bernard Burke, Pickard-Cambridge, Pridgen, Renshaw, Reynes, Round ( Essex County ), Seward, Shreeve, Sherriff, Sibley, Sturges, Swire, Strickland, Thurston, Thruston, Turner, Tyler, Vorsatz, Walmsley, Womack and Woodgate.

The Sibley-Ahlquist taxonomy is a bird taxonomy proposed by Charles Sibley and Jon Edward Ahlquist.

In the Sibley-Ahlquist classification, the nine-primaried oscines are treated as a single family ( Fringillidae sensu Sibley & Ahlquist ).

* Sibley, Charles Gald & Monroe, Burt L. Jr. ( 1990 ): Distribution and taxonomy of the birds of the world: A Study in Molecular Evolution.

* Sibley, Charles Gald & Monroe, Burt L. Jr. ( 1990 ): Distribution and taxonomy of the birds of the world: A Study in Molecular Evolution.

* Sibley, Charles Gald & Monroe, Burt L. Jr. ( 1990 ): Distribution and taxonomy of the birds of the world: A Study in Molecular Evolution.

Sibley and Alquist in their 1990 bird taxonomy had the genera Mionectes, Leptopogon, Pseudotriccus, Poecilotriccus, Taenotriccus, Hemitriccus, Todirostrum and Corythopsis as a separate family Pipromorphidae, but although it is still thought that these genera are basal to most of the family, they are not each other ’ s closest relatives.

* Sibley, Charles Gald & Monroe, Burt L. Jr. ( 1990 ): Distribution and taxonomy of the birds of the world: A Study in Molecular Evolution.