1904, June - Crockers (Saguia) Cassin's Vireo was very abundant. Its song sounds something as if it were saying - "Mamie, Mamie, Come here, quick" and when repeated every few minutes grew rather monotonous. We had a splendid opportunity to compare the songs of the Black- headed Grosbeak and Robin, both of which has nests near by. Unless one could distinguish the thrush quality in the robin's song it would be difficult to be sure always which was which. (Fuller notes found later given on odd pages back.)