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
Common Bird Monitoring of India Common Bird Monitoring of India The Common Bird Monitoring Program is a citizen science bird monitoring program of India. It is a pioneer project that aims to engage general public in the collection of baseline data on 18 common bird species. Data collected will be used to map species abundance and distribution throughout the Indian subcontinent. The program is an initiative of the Nature Forever Society, supported by the Jaypee Group. It was launched in the city of Mumbai on World Sparrow Day, 20 March 2012. Bombay Natural History Society (BNHS), Mumbai launched its Common Bird Monitoring Program in 2015.