Incazelo yesichazamazwi se-Cowbird iyinyoni yaseNyakatho Melika yomndeni we-blackbird, ebekela amaqanda ayo ezidlekeni zezinye izinyoni, ezivumela ukuthi zikhulise amaphuphu ayo. I-cowbird yaziwa ngomkhuba wayo wokuzalela amaqanda ezidlekeni zezinye izinyoni, bese zikhulisa itshwele njengezazo. Lokhu kuziphatha kwaziwa ngokuthi yi-brood parasitism.
