The week in wildlife – in pictures

A Quetzal (Pharomachrus mocinno) at 'El Nido' (the nest) aviary park in Mexico City. The park is home to 3,000 birds of 350 different species, including this strikingly coloured species which is on the verge of extinction in the wild Photograph: Stringer/Reuters

A ladybird is seen on a stalk of wheat in Les Essarts, western France Photograph: Denis Balibouse/Reuters

This close-up of a grasshopper is among the many quirky sights that wildlife photographer Joanne Williams has captured over nearly two decades Photograph: Joanne Williams / Rex Features/Joanne Williams / Rex Features

A mouse runs away from a silo in a farm near Parkes in inland New South Wales, Australia. Australia's grain regions face an increasing threat from plagues of mice this spring, a rodent expert said, while a New South Wales farmer feared that about 30% of his wheat crop may have been lost Photograph: Daniel Munoz/Reuters

A herd of giraffe moves through the Bandiglio national park in Southern Sudan, which will become the world's newest country tomorrow. The park is home to the world's second largest migration of animals, where vast herds of gazelle and antelope move through a region which had been assumed to have been denuded of its wildlife by years of civil war Photograph: Paul Elkan/AFP/Getty Images

Golden monkeys in Shennongjia nature reserve in central China's Hubei province Photograph: Du Huaju/Corbis

Doves in the branches of a tree in the Dadaab refugee camp in north-eastern Kenya. The camp - now the largest refugee settlement in the world - has been overwhelmed by 370,000 people escaping drought in the Horn of Africa Photograph: Roberto Schmidt/AFP/Getty Images

A peacock butterfly feeds on budleia blossom in Herdecke, Germany Photograph: BERND THISSEN/EPA

Wildflowers next to a trail heading to the summit of Lookout Mountain, and the home of the Lookout wolf pack. Controversy has surrounded grey wolves since they were reintroduced to the Northern Rockies in 1995, but the animals have thrived and travelled to new territory, including Washington and Oregon Photograph: Elaine Thompson/AP

Max, a male clouded leopard, at the world's first clouded leopard breeding centre in Thailand. A major aim of the programme is to diversify the gene pool of the rapidly diminishing species of the highly secretive cat, classified as vulnerable Photograph: Barbara Walton/EPA

Gannets look for food around Bass Rock, eastern Scotland, the largest single island gannet colony in the world Photograph: David Cheskin/PA

A digger drops jellyfish cleared from the power station in Hadera, after they blocked the water supply to the plant on 5 July 2011 in the coastal city north of Tel Aviv Photograph: Jack Guez/AFP/Getty Images

Rhino emerge from under some trees in the Bushveld at Hlane royal national park, in eastern Swaziland. A teenage rhino calf died of stress and hunger last week in Swaziland after poachers slaughtered its mother, the first rhino killed in the tiny kingdom in two decades. At the same time, a 16-year-old boy was in hospital, after his lung was lacerated by a bullet from a ranger's gun. An elite team of rangers have protected Swaziland's game for decades, under a law that allows them to shoot poachers in life-threatening situations and grants immunity from prosecution if acting in the line of duty Photograph: Mariana Suarez/AFP/Getty Images

A squirrel sleeping on bench in central Florida, United States, is another image by Joanne Williams Photograph: Joanne Williams/Rex Features