This postcard (NL-5372489) I sent to Eve in Germany (Leipzig).
Postcard details: Black Swan (Artis Shop), travelled about 532 km (331 mi) in 4 days

Zwarte Zwaan - Black Swan - Cygnus atratus, Artis, illustration by Annemieke Bunjes
The Black Swan is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the Black Swan is nomadic, with erratic migration patterns dependent upon climatic conditions. It is a large bird with mostly black plumage and a red bill. It is a monogamous breeder, with both partners sharing incubation and cygnet-rearing duties. The Black Swan was introduced to various countries as an ornamental bird in the 1800s, but has managed to escape and form stable populations. Described scientifically by English naturalist John Latham in 1790, the Black Swan was formerly placed into a monotypic genus, Chenopis. Black Swans can be found singly, or in loose companies numbering into the hundreds or even thousands. It is a popular bird in zoological gardens and bird collections, and escapees are sometimes seen outside their natural range.

Artis, short for Natura Artis Magistra (Latin for "Nature is the Teacher of the Arts"), is a Zoo in the centre of Amsterdam.
It's the oldest Zoo in the Netherlands and one of the oldest Zoos of mainland Europe.