: Avoiding the "contamination" of songs from other bird species, which can happen if the bird isn't carefully shielded during its learning phase. Ivana Mladenović: A Legacy of Excellence
The "002/2017" likely identifies the specific bird or recording number from the 2017 competition season. These competitions, often organized by groups like , judge birds based on the complexity, clarity, and traditional "tours" (melody sequences) of their song. pesma_stiglica_002_2017_ivana_mladenovic_world_...
: The bird must perform a series of distinct melodic phrases without harsh or incorrect notes. : Avoiding the "contamination" of songs from other