Donal Hickey: House 'shares' with jackdaws, bats and owls
Nest boxes are helping barn owl survival. Picture: Paul Newton
An old lady of our acquaintance was once plagued by jackdaws nesting in her chimney. She decided the only solution was to smoke out the invaders.
But that ploy didn’t work. For, the chimney was blocked by twigs and other imported materials, which the turf smoke couldn’t penetrate, and her house was filled with smoke.
![<p> The International Union for the Conservation of Nature says that “an ecosystem is collapsed when it is virtually certain that its defining biotic [living] or abiotic [non-living] features are lost from all occurrences, and the characteristic native biota are no longer sustained”.</p> <p> The International Union for the Conservation of Nature says that “an ecosystem is collapsed when it is virtually certain that its defining biotic [living] or abiotic [non-living] features are lost from all occurrences, and the characteristic native biota are no longer sustained”.</p>](/cms_media/module_img/9930/4965053_12_augmentedSearch_iStock-1405109268.jpg)