Common cuckoo of two years. More than 100 host species have been recorded: meadow pipit, dunnock and Eurasian reed warbler are the most common hosts in northern Europe; garden warbler, meadow pipit, pied wagtail and European robin in central Europe; brambling and common redstart in Finland; and great reed warbler in Hungary. Female common cuckoos are divided into gentes – groups of females favouring a particular host species' nest and laying eggs that match those of that species in color and pattern. Evidence from mitochondrial DNA analyses suggest that each gene may have multiple independent origins due to parasitism of specific hosts
Laughing Bird Caye in the central lagoon of the Belize Barrier Reef. Laughing Bird Caye is a long island that sits on an unusually long narrow ridge of reef called a faro. A faro is an angular atoll on a continental shelf, which is also called a shelf atoll. Similar to other atolls, a faro has a steep drop off and has a central lagoon enclosed in the reef. This Laughing Bird Faro is separated from the mainland and the barrier reef by deep channels all around the faro. Laughing Bird Caye is a unique island structure in which its uniqueness adds to