Carrion Crows benefit from Great Spotted Cuckoos using their nests: http://www.livescience.com/44239-cuckoo-birds-are-not-always-parasites.html Andrew _______________________________________________ Birding-Aus mailing list Birding-Aus@birding-aus.org To change settings or unsubscribe visit: http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org