It has been established that the helper system among birds normally has advantages for the parent birds in bringing up their young; but so far researchers have not been able to define precisely what advantages are derived by the blue magpie.
國外的研究指出，鳥類的幫手制度，通常會給親鳥育雛上帶來益處；但至今研究人員仍無法研判藍鵲從幫手制得到什麼利益。