The AOU for example has deferred recognizing the Cliff Parakeet as distinct " because of insufficient published data ".

The North and South American Committees of the AOU and the IOC have voted on or before July 2011 to split the American forms into a new species Common Gallinule, however, no other committee has voted to change taxonomy yet.

This combined with differences in plumage ( see appearance ) and, apparently, certain measurements, has been the background for the split, but hard scientific data is presently lacking ( AOU ).

This check-list has been highly influential in ornithology, and has – either directly or indirectly – been used as a basis for numerous modern check-lists such as The Clements Checklist of the Birds of the World by James Clements, The Howard and Moore Complete Checklist of the Birds of the World edited by Edward C. Dickinson, Distribution and Taxonomy of Birds of the World by Charles Sibley and Burt Monroe, the AOU Checklist of North American Birds by AOU, and the check-list to birds of South America by SACC.

The AOU has divided the many associated subspecies between both animals.

The radical nature of this proposal has provoked surprise in some quarters ; Richard Banks of the AOU urges caution before any of Hanson's proposals are accepted.

The species has recently split by the AOU from the Grey-lined Hawk.

The species has been split by the AOU from the Grey Hawk.

This species was formerly-and sometimes still is-considered a subspecies of the Mallard, as Anas platyrhynchos diazi ( AOU 1983 ).

The Cackling Goose was originally considered to be the same species or a subspecies of the Canada Goose, but in July 2004 the American Ornithologists ' Union's ( AOU ) Committee on Classification and Nomenclature split the two into two species, making Cackling Goose into a full species with the scientific name Branta hutchinsii.

Some ornithologists ( including AOU 2007 ) split them into two species based on breeding habitat, whether in forest bogs in the subarctic taiga, or on the arctic tundra.

Whether the Eurasian and Green-winged teals are to be treated as one or two species is still being reviewed by the AOU, while the IUCN and BirdLife International separate them nowadays.

In addition, the members of the newly created AOU unanimously enrolled two others as founding members: Professor S. Baird, who was unable to attend due to his duties at the Smithsonian, and J.

Like the AOU in North America, the BOU had a focus mainly in collection based taxonomy.

AOU.

AOU.

* American Ornithologists ' Union ( AOU ) ( 2000 ): Forty-second supplement to the American Ornithologists ' Union Check-list of North American Birds.

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 AOU.

Both the North American and South American committees of the AOU recognized the family soon after.

* American Ornithologists ' Union ( AOU ) ( 2000 ): Forty-second supplement to the American Ornithologists ' Union Check-list of North American Birds.

Disregarding field guides, most material published in recent years ( e. g. AOU, Ferguson-Lees et al.

Genetic research published in 2009 strongly suggested that the Snowy Plover is a separate species from the Kentish Plover, and by July, 2011, the IOC, and the AOU North American committee have recognized them as separate species.

In 1902 Charles B Cory, the president elect of the AOU refused to attend a meeting of the District of Columbia Audubon Society stating that " I do not protect birds.

* American Ornithologists ' Union ( AOU ) ( 2000 ): Forty-second supplement to the American Ornithologists ' Union Check-list of North American Birds.

The American Ornithologists ' Union ( AOU ) is among the oldest and most respected ornithological organization in the world.

The AOU was founded in 1883.

Founding members of the AOU include those present at the inaugural convention, listed below.

Regular membership in the AOU is open to any dues paying person with an interest in birds.

Other significant publications include the AOU Checklist of North American Birds, which is the standard reference work for the field, and a monograph series, Ornithological Monographs.

The AOU presents annual awards to recognize achievements and service, support research, and encourage student participation.

In recent months, much attention has been given to the probable extent of the current downtrend in business and economists are somewhat divided as to the outlook for the near future.

It has flared up periodically on the front pages of newspapers in communities divided over birth-prevention regulations in municipal hospitals and health and family-welfare agencies.

But inevitably the border which has divided the ghetto from the rest of the world falls into the hands of the ghetto.

America has divided more than she has united the West.

Critical opinion about the quality of van Vogt's work has been sharply divided.

The concept that matter is composed of discrete units and cannot be divided into arbitrarily tiny quantities has been around for millennia, but these ideas were founded in abstract, philosophical reasoning rather than experimentation and empirical observation.

The latter has been shown to be extensively paraphyletic, and has now been divided into 11 subfamilies, but the former still stands.

Ancient Pueblo culture has been divided into three main areas or branches, based on geographical location:

Ever since Arminius and his followers revolted against Calvinism in the early 17th century, Protestant soteriology has been largely divided between Calvinism and Arminianism.

Still, testing on the subject has been somewhat divided.

If the square mile is divided into quarters, each quarter has a side length of mile ( 880 yards ) and is square mile in area, or 160 acres.

Argo Navis ( or simply Argo ) was a large constellation in the southern sky that has since been divided into three constellations.

Lemaître, however, thought thatIf the world has begun with a single quantum, the notions of space and time would altogether fail to have any meaning at the beginning ; they would only begin to have a sensible meaning when the original quantum had been divided into a sufficient number of quanta.

" In 1982 BJU's then-president Bob Jones III, during interviews in which he defended the school's tax-exempt status, cited nine passages from the Bible-drawn both from the Old and New Testaments-which he claimed demonstrated that God intended races to be segregated: " The Bible clearly teaches, starting in the 10th chapter of Genesis and going all the way through, that God has put differences among people on the earth to keep the earth divided ", he said, adding that inter-racial marriage was " playing into the hands of the antichrist and the one-world system.

Traditionally, the law has divided conflicts of duty and interest into three sub-categories.

It has already been indicated, by reference to Matins, Lauds, & c., that not only each day, but each part of the day, has its own office, the day being divided into liturgical " hours.

Otto has also divided his army into three groups:

Cyprus has been divided, de facto, into the Greek Cypriot controlled southern two-thirds of the island and the Turkish-occupied northern third.

It has a convex, elliptical surface and is divided into anterior and posterior lips.

The battle itself has long been regarded as a key moment in the Saxon advance, since in reaching the Bristol Channel, the West Saxons divided the Britons west of the Severn from land communication with those in the peninsula to the south of the Channel.

Chinese society has traditionally been divided into four social classes: scholar-officials, farmers, artisans, and merchants.

The emphasis on the restoration of truth has led to a history of division and schism that has divided friends and families.