the chicks and fledged young, and in very hot weather, the female has been noted as taking drops of water to her chicks in her bill. This species becomes sexually mature after one year, and has an annual adult mortality of over 80 percent giving a life expectancy of around eight months, which is the shortest for any bird apart from a few Coturnix species. There are nonetheless records of an individual surviving to 4 years 10 months, and even a report of a bird ringed in Winchester in the UK in 1989 and found dead in Morocco 7 years and 7 months later. Although their ranges overlap substantially, hybridisation between goldcrests and firecrests seems to be prevented by differences in courtship rituals and different facial patterns. Even in aviary studies in which a female goldcrest was given an artificial eyestripe to facilitate mating with a male firecrest, the chicks were never raised by the mixed pair, and appeared to be poorly adapted compared to the parent species. Feeding All Regulus species are almost exclusively insectivorous, preying on small arthropods with soft cuticles, such as springtails, aphids and spiders. They also feed on the cocoons and eggs of spiders and insects, and occasionally take pollen. All species will catch flying insects while hovering. Although the similarly sized goldcrest and firecrest are often found together, there are a number of factors that minimise direct competition for food. Goldcrests prefer smaller prey than common firecrests. Although both will take trapped insects from spider webs on autumn migration, firecrests will also eat the large orb-web spiders (on rare occasions kinglets have been found stuck in a spider web, either unable to move or dead). The goldcrest takes a wide variety of prey, especially spiders, caterpillars, bugs, springtails and flies. Larger prey such as oak bush crickets and tortrix moths may sometimes be taken. Flying insects are taken in hovering flight but not normally pursued; there is a record of a goldcrest attacking a large dragonfly in flight, only to be dragged along by the insect before releasing it unharmed. Goldcrests will occasionally feed on the ground among leaf-litter with tits. Non-animal food is rare, although goldcrests have been seen drinking sap from broken birch twigs together with tits and nuthatches. The goldcrest feeds in trees, frequently foraging on the undersides of branches and leaves. This is in contrast to the common firecrest, which