Birds' Wedding

Proper noun

 * 1) A custom among the Sorbs (Wends) of Lusatia in Germany, whereby on the evening of 24 January children put empty plates outside, and on the morning of 25 January they find pastries, meringues and candy in the form of birds, which are said to have been left for them by birds celebrating their wedding.
 * 2) * 1972, Gerald Stone, The smallest Slavonic nation: the Sorbs of Lusatia. Athlene Press. pp. 130–31:
 * On 25 January in Upper Lusatia the custom of Ptači kwas (Birds’ Wedding) is observed. [...] Following the First World War the Birds’ Wedding began to assume a new form, and eventually developed into a popular festival which was given a new impulse after 1945.

Translations

 * German: Vogelhochzeit
 * Russian: птичья сва́дьба
 * Sorbian:
 * Lower Sorbian: ptaškowa swajźba
 * Upper Sorbian: ptači kwas