Tits are active, noisy and social birds.

Marsh and Willow Tits are difficult to identify on appearance alone ; the races occurring in the UK ( P. p. dresseri and P. m. kleinschmidti respectively ) are especially hard to separate.

Note the glossy cap, smaller bib and uniform wings which help distinguish it from the Willow Tit. In mixed winter tit flocks, seldom more than one or two Marsh Tits are present, and parties of this species alone are infrequent.

The hidden seeds are prone to being stolen, by other Marsh Tits or other species, so birds often fly from one site to another before deciding on a hiding place.

Marsh Tits are monogamous and often pair for life ; one pair stayed together for six years.

Coal Tits from Asia follow Bergmann's Rule, being larger in colder regions ; those from further west, however, do not, as the birds from the uplands around the Mediterranean are larger than those from northern Europe.

The prison officers, or " screws " as they are called by the women, comprised the firm but fair governor Erica Davidson ( Patsy King ), flanked by the diametrically opposed dour Deputy governor Vera Bennett ( Fiona Spence ), dubbed " Vinegar Tits " by the inmates, and compassionate senior officer Meg Jackson ( Elspeth Ballantyne ).

Research published in 2007 found that Blue Tits on the eastern Canary Islands of Fuerteventura and Lanzarote are indistinguishable from those in North Africa and so the subspsecies degener should be regarded as a synonym of ultramarinus.

Young Blue Tits are noticeably more yellow.

Blue and Great Tits form mixed winter flocks, and the former are perhaps the better gymnasts in the slender twigs.

Blue Tits are able to culturally transmit learning to other Tit species.

Blue Tits are known to be host to feather mites, and rarely lice and flat flies.

Other than those species formerly considered to be subspecies, the Great Tit's closest relatives are the White-naped and Green-backed Tits of southern Asia.

Mixed-forests are one of the habitats Great Tits use in Europe.

Great Tits are primarily insectivorous in the summer, feeding on insects and spiders which they capture by foliage gleaning.

Great Tits are monogamous breeders and establish breeding territories.

Great Tits are seasonal breeders.

Great Tits are cavity nesters, breeding in a hole that is usually inside a tree, although occasionally in a wall or rock face, and they will readily take to nest boxes.

The nests of Great Tits are raided by Great Spotted Woodpeckers, particularly when nesting in certain types of nest boxes.

Tits proved a remarkable theorem: all spherical buildings of rank at least three are connected with a group ; moreover, if a building of rank at least two is connected with a group then the group is essentially determined by the building.

Tits proved that all irreducible spherical buildings ( i. e. with finite Weyl group ) of rank greater than 2 are associated to simple algebraic or classical groups.

For example, Great Tits and House Sparrows are vulnerable to attack.

A study of Marsh Tits in Białowieża Forest, Poland, looked at which factors affected birds ' choice to re-occupy a nest hole used the previous year.

Insularity also affects clutch size, with Great Tits on offshore islands laying smaller clutches with larger eggs than mainland birds.

The Gardens provides homes for a number of birds, including Great Tits, Robins, Magpies, and Blackbirds.

Most burrow-nesting birds excavate their own burrows, but some use those excavated by other species ; Burrowing Owls, for example, sometimes use the burrows of prairie dogs, ground squirrels, badgers or tortoises, China's endemic White-browed Tits use the holes of ground-nesting rodents and Common Kingfishers occasionally nest in rabbit burrows.

The Azure Tit frequently hybridizes with the Blue Tit in western Russia ; the resulting birds are called " Pleske's Tits " ( Cyanistes × pleskei ) and were once considered a distinct species.

A study of the foraging ecology of alpine forest birds on conifers in the Taroko National Park found that, when compared with Eurasian Nuthatches, Coal Tits, Green-backed Tits and Black-throated Tits, Flamecrests were the most generalised foragers, utilising almost all of the crown of a tree, rather than specialising in parts of it as with the other species, with which it associates in mixed-species foraging flocks during the non-breeding season.

The park has a rich flora and fauna: birds include: Blue Tits, blackbirds, swallows, robins, magpies and the omnipresent sparrows and pigeons on the north and northwestern edge of the park.

Tits later reworked the foundational aspects of the theory of buildings using the notion of a chamber system, encoding the building solely in terms of adjacency properties of simplices of maximal dimension ; this leads to simplifications in both spherical and affine cases.

This can be seen systematically using a construction known as the magic square, due to Hans Freudenthal and Jacques Tits.

This can be seen systematically using a construction known as the magic square, due to Hans Freudenthal and Jacques Tits.

Marsh Tits breed mostly in lowland areas, but can reach altitudes of up to 1, 300 m. They prefer large areas of moist, broadleaved woodland, often oak or beech, though they can occupy wet alder woodland, riverside trees, parks and gardens or orchards.

A study at Monks Wood, Cambridgeshire, England, found that Marsh Tits required mature trees with a shrub layer below the canopy, but that they avoided parts of the wood with lots of young trees.

Initially introduced by Jacques Tits as a means to understand the structure of exceptional groups of Lie type, the theory has also been used to study the geometry and topology of homogeneous spaces of p-adic Lie groups and their discrete subgroups of symmetries, in the same way that trees have been used to study free groups.

Plumage characteristics include the lack of a pale wing panel ( formed by pale edges to the secondary feathers in the Willow Tit ), the Marsh Tit's glossier black cap and smaller black ' bib ', although none of these is ' completely reliable '; for example, juvenile Marsh Tits can show a pale wing panel.

* Ke, Dianhua & Lu, Xin ( 2009 ): Burrow use by Tibetan Ground Tits Pseudopodoces humilis: coping with life at high altitudes.

Marsh Tits do not usually excavate their own nest holes, though they may enlarge the hollow, carrying the chips to a distance before dropping them.

The Blue Tit will nest in any suitable hole in a tree, wall, or stump, or an artificial nest box, often competing with House Sparrows or Great Tits for the site.

* Long-tailed Tits videos on the Internet Bird Collection

In Britain, Great Tits and Blue Tits famously learned to break open the foil caps sealing bottles of milk that had been delivered to homes to get at the cream floating on top.

Tits demonstrated how to every such group G one can associate a simplicial complex Δ = Δ ( G ) with an action of G, called the spherical building of G. The group G imposes very strong combinatorial regularity conditions on the complexes Δ that can arise in this fashion.

If a group G acts simplicially on a building X, transitively on pairs of chambers C and apartments A containing them, then the stabilisers of such a pair define a BN pair or Tits system.

The results of Tits on determination of a group by its building have deep connections with rigidity theorems of George Mostow and Grigory Margulis, and with Margulis arithmeticity.

A study looked at the effect on the population of Blue Tits in an area where a pair of Eurasian Sparrowhawks began to breed in 1990.

Russo claims that the name " Total Nonstop Action " came from him and that the original concept was, as they were exclusive to pay per view, to be an edgier product than WWE ; the initials of the company " TNA " being a play on " T & A ", short for " Tits and Ass ".

* Jacques Tits publishes significant work on group theory.

For finitely generated linear groups, however, the von Neumann conjecture is true by the Tits alternative: every subgroup of GL ( n, k ) with k a field either has a normal solvable subgroup of finite index ( and therefore is amenable ) or contains the free group on two generators.

Although Tits ' proof used algebraic geometry, Guivarc ' h later found an analytic proof based on V. Oseledets ' multiplicative ergodic theorem.

" Nonetheless, neither the band nor the album proved to be a big commercial success in the US: major chain store Wal-Mart refused to stock it, claiming on its website that it contained " a snarling, swaggering attack on conservatism " in the form of the song " Tits on the Radio ".

During the 1970s Rivers worked closely with Diana Molinari and Michel Auder on many video tape projects, including the infamous Tits, and also worked in neon.