The osprey (/ˈɒspri, -preɪ/;[2] Pandion haliaetus), historically known as sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor, reaching more than 60 cm (24 in) in length and 180 cm (71 in) across the wings. It is brown on the upperparts and predominantly greyish on the head and underparts.

Rails (avian family Rallidae) are a large, cosmopolitan family of small- to medium-sized terrestrial and/or semi-amphibious birds. The family exhibits considerable diversity in its forms, and includes such ubiquitous species as the crakes, coots, and gallinule; other rail species are extremely rare or endangered. Many are associated with wetland habitats, some being semi-aquatic like waterfowl (such as the coot), but many more are wading birds or shorebirds. The ideal rail habitats are marsh areas, including rice paddies, and flooded fields or open forest. They are especially fond of dense vegetation for nesting.[2] The rail family is found in every terrestrial habitat with the exception of dry desert, polar or freezing regions, and alpine areas (above the snow line). Members of Rallidae occur on every continent except Antarctica. Numerous unique island species are known.

The budgerigar (/ˈbʌdʒərɪɡɑːr, -əriː-/ BUJ-ər-ih-gar, -⁠ə-ree-;[3] Melopsittacus undulatus), also known as the common parakeet, shell parakeet or budgie  (/ˈbʌdʒi/ BUJ-ee),[3][4] is a small, long-tailed, seed-eating parrot. Naturally, the species is green and yellow with black, scalloped markings on the nape, back, and wings.[5] Budgies are bred in captivity with colouring of blues, whites, yellows, greys, and even with small crests.[5][6] Juveniles and chicks are monomorphic, while adults are told apart by their cere colouring, and their behaviour.

The budgerigar (/ˈbʌdʒərɪɡɑːr, -əriː-/ BUJ-ər-ih-gar, -⁠ə-ree-;[3] Melopsittacus undulatus), also known as the common parakeet, shell parakeet or budgie  (/ˈbʌdʒi/ BUJ-ee),[3][4] is a small, long-tailed, seed-eating parrot. Naturally, the species is green and yellow with black, scalloped markings on the nape, back, and wings.[5] Budgies are bred in captivity with colouring of blues, whites, yellows, greys, and even with small crests.[5][6] Juveniles and chicks are monomorphic, while adults are told apart by their cere colouring, and their behaviour.

Wrens are a family, Troglodytidae, of small brown passerine birds. The family includes 96 species and is divided into 19 genera. All species are restricted to the New World except for the Eurasian wren that is widely distributed in the Old World. In Anglophone regions, the Eurasian wren is commonly known simply as the "wren", as it is the originator of the name. The name wren  has been applied to other, unrelated birds, particularly the New Zealand wrens (Acanthisittidae) and the Australian wrens (Maluridae).

Loons (North American English) or divers (British / Irish English) are a group of aquatic birds found in much of North America and northern Eurasia. All living species of loons are members of the genus Gavia, family Gaviidae and order Gaviiformes.

The Arctic tern (Sterna paradisaea) is a tern in the family Laridae. This bird has a circumpolar breeding distribution covering the Arctic and sub-Arctic regions of Europe (as far south as Brittany), Asia, and North America (as far south as Massachusetts). The species is strongly migratory, seeing two summers each year as it migrates along a convoluted route from its northern breeding grounds to the Antarctic coast for the southern summer and back again about six months later. Recent studies have shown average annual round-trip lengths of about 70,900 km (44,100 mi) for birds nesting in Iceland and Greenland and about 48,700 km (30,300 mi) for birds nesting in the Netherlands. These are by far the longest migrations known in the animal kingdom. The Arctic tern nests once every one to three years (depending on its mating cycle).

Lovebird is the common name for the genus Agapornis, a small group of parrots in the Old World parrot family Psittaculidae. Of the nine species in the genus, all are native to the African continent, with the grey-headed lovebird being native to the African island of Madagascar.

Rallidae, the rail family, a bird  family that includes the species known as rail, coot, crake, and gallinule (qq.v.).

The rails are a large group of chickenlike birds, most of which live in marshes or associated habitats such as meadows, swamps, and lakes.  A few family members, including the coots and some gallinules, spend much of their time swimming in open water, generally behaving like ducks, but the vast majority of rail species are habitually furtive and rarely leave the safe concealment of dense vegetation.  Consequently, most rails are little-known and the infrequency of sightings makes each one memorable.