The week in wildlife

A grey heron swims in a pond. The grey heron is native throughout temperate Europe and Asia and parts of Africa Photograph: Thomas Lohnes/guardian.co.uk

The machair landscape in the Hebrides which stretches from north Uist to Islay in Scotland. The machair is home to rare birds, including the corncrake, chough and corn bunting, 16,000 breeding pairs of wading birds and insects such as the great yellow bumblebee which has virtually disappeared from Europe Photograph: Donald Iain Campbell/RSPB/PA

Part of a flock of storks flies over the Judean Desert near the West Bank Jewish settlement of Kfar Adumim. Thousands of storks fly through the region as they migrate between the northern and southern hemispheres. Photograph: Ronen Zvulun/Reuters

A tree stands alone in a logged area prepared for plantation near Lapok in Malaysia's Sarawak State. Hundreds of Penan tribespeople armed with spears and blowpipes have set up new blockades deep in the Borneo jungles, escalating their campaign against logging and palm oil plantations. Penan chiefs said that after enduring decades of logging which has decimated the jungles they rely on for food and shelter, they now face the threat of clear-felling to make way for crops of palm oil and planted timber Photograph: Saeed Khan/AFP/Getty Images

Offspring of the fennec fox in Krakow zoo, Poland. The cubs will rely on their mother's milk for about a month Photograph: Jacek Bednarczyk/EPA

A group of hippos bathe in a shrinking shallow pool of water in the Tsavo West national park, in southern Kenya. Kenya's persistant and bruising drought is having a serious impact on the country's wildlife, obliging the Kenya Wildlife Service (KWS) to feed hippos to keep them alive. In Tsavo West national park, a vast expanse of shrubby savannah and majestic rocky outcrops in the south east of the country, hippos are dying in large numbers Photograph: Roberto Schmidt/AFP/Getty Images

A spider in its web, one of the hundreds of species of wildlife found near the space shuttle Discovery sitting on launch pad 39-A at the Kennedy Space Center in Florida Photograph: Karen Bleier/AFP/Getty Images

A cebu flowerpecker, which is one of 47 long-lost species of bird, that Birdlife International are attempting to find Photograph: Tomasz Cofta/BirdLife Internatio/PA

A damselfly rests on a branch Photograph: Nikola Solic/Reuters

A southern brown tree frog sits on a log in swampy lands near Melbourne, Australia. Traffic noise could be ruining the sex lives of urban frogs by drowning out the seductive croaks of amorous males, an Australian researcher said Photograph: Nick Clemann/AP

A big blue heron (top) fights with a great white heron Photograph: Gary I Rothstein/EPA

Evergreen trees in an early morning mist covering the Kiambu forest on the outskirts of Kereita, Kenya. It is estimated that less than 2% of Kenya's total area is covered by forest but experts say that forest cover of around 10% is required for the country to sustain life naturally Photograph: Stephen Morrison/EPA

A Warao man shows a piranha bite after catching it at the Orinoco delta in the state of Delta Amacuro. The Orinoco river is one of the longest rivers in South America Photograph: Jorge Silva/Reuters

A common frog struggles to the surface for a gulp of air in a mill pond swamped by duckweed. Duckweed grows across the world except in very cold regions. If the Duckweed covers the surface of a pond, it will deplete the oxygen, killing fish and the submerged plants who will not receive the sunlight for their growth. Duckweed is a stemless, aquatic flowering plant. It is small and free-floating and grows on the surface of still or slow moving water in carpet-like groups Photograph: David Boag/PIN

The two-year old orphaned African elephant Jumaane climbs on the back of his dead mother, Yoki, 19, in the Nyiregyhaza animal park in Hungary, the day after Yoki died, apparently of a tumor in her spleen. Jumaane stayed with the lifeless body of his mother for 14 hours after her death. Keepers say the calf, in a state of distress, looked for his mother after the body was later removed from the elephant house Photograph: Attila Balazs/AP

Burnt trees in a forest in an area of Marathon Lake, north of Athens, Greece. Athenians battled alongside firefighters to control a massive fire that was raging for the fourth day on the outskirts of the Greek capital and threatening to spread to heavily populated areas Photograph: Kostas Tsironis/EPA