Keywords: Phoenicurus frontalis eggs 1889.jpg « Ruticilla frontalis » Phoenicurus frontalis Blue-fronted redstart - eggs « Ruticilla frontalis » Phoenicurus frontalis Rougequeue à front bleu - œufs http //archive org/stream/NauchnyerezulYt2IAka page/n173/mode/2up Nauchnye rezulʹtaty puteshestvyǐ N M Przhevalʹskago po t͡sentralʹnoǐ Azii Tom II Ptit͡sy Obrabotal Ḟ D Pleske Creator Gustav Mützel 1889 Extracted from Eggs in Pleske 1889 jpg PD-old-100 Phoenicurus frontalis Phoenicurus eggs Nauchnye rezulʹtaty puteshestvyǐ N M Przhevalʹskago po t͡sentralʹnoǐ Azii |