"Among nightingales, as well as other species, some females are found participating in the constitution of the male, his habits, and especially in his musical powers. I have seen, in confinement, one of these female singers. Her warble resembled that of the male, but was neither so strong nor so varied. She preserved it till spring; but then subduing the exercise of her talent to the natural duties of her sex, she became silent, in order to build her nest, and to lay, though she was solitary. It appears that, in warm countries, such as Greece, it is very common to see these female singers, and respecting this species and many others we may draw the same inference from a passage of Aristotle. One would hardly imagine that so varied a song as that of the nightingale is confined within a single octave; this is, however, the result of the attentive observations of a man of taste (M. le docteur Remond). He remarked, indeed, some sharp tones which formed the double octave, and which were emitted like lightning; but this happens rarely, and when the bird by a powerful effort of the gullet raises his voice to the octave. "The same observer discovered shakes on the third, fourth, and octave, but always from sharp to flat; cadences, generally in the minor, on almost every note; but no arpeggios, no coherent design." Independent of these talents, the nightingale possesses a quality very likely to augment the number of his friends; he is capable, after some time, of forming attachments. When once he has made acquaintance with the person who takes care of him, he distinguishes his step before seeing him; he welcomes him by a cry of joy; and, during the moulting season, he is seen making vain efforts to sing, and supplying by the gaiety of his movements, and the expression of his looks, the demonstrations of joy which his throat refuses to utter. When he loses his benefactor, he sometimes pines to death; if he survives it is long before he is accustomed to another[83]. His attachments are long, because they are not hasty, as is the case with all wild and timid dispositions. THE GREATER NIGHTINGALE. [Illustration] Motacilla Luscinia major, LINNÆUS; Le Grand Rossignol, ou La Progné[84], BUFFON; Der Sprosser, BECHSTEIN.