Bulgaria offers a rare opportunity to nature lovers to observe the rich flora and fauna in their normal habitat. For the bird watching enthusiasts the country is a must.With more than 400 species of birds, Bulgaria is justifiablyknown as a bird watcher's paradise. There are over 200 Dalmatian pelicans in thecolony at the Srebarna, a UNESCO reserve, which is the richest European colony.You can see the black stork along the river of Iskar, the colonies of cormorans nestling on the small cliff islands or flying across the lagunesat the Black sea cost. The greatest autumn and winter  migration in Europe, when thousands of rare birds fly the so called ?Via Pontica? way,can be observed at the north and south costal areas.