Pakistan, July 15 -- Cradling an Asian koel in his hands, wildlife officer Zaheer Ahmed gently stretched its wings as part of a health checkup to rehabilitate birds hit with dehydration or heatstroke in Pakistan's capital. Pakistan - one of the most vulnerable countries to the effects of climate change - experienced its second-warmest year since 1960 in 2025, according to government data.

Temperatures in Islamabad this summer have pushed past 40C.

"In the past, because of kite flying, the string used to damage their wings," said Sakhawat Ali, director of the Islamabad Wildlife Management Board which oversees the Margallah Wildlife Rescue Centre in Islamabad. "But for the last one or two years, most of the cases we have been receiving in...