In June, 1840, a boy who lived in Carlisle, Pennsylvania, mustered up courage to write to the naturalist and give him an account of a new bird, the Yellow-bellied Flycatcher, which he and his brother had discovered, under the very noses, as it were, of all the ornithologists in America. With that fine sense of modesty which characterized the man in after life, for his name was Spencer Fullerton Baird, he wrote:[178] "You see Sir that I have taken (after much hesitation) the liberty of writing you. I am but a boy, and very inexperienced, as you no doubt will observe from my description of the Flycatcher." Audubon, who had just returned from the sick-bed of his daughter-in-law, replied promptly as follows: _Audubon to Spencer Fullerton Baird_ NEW YORK, _June 13, 1840_. DEAR SIR, On my return home from Charleston S. C. yesterday, I found your kind favor of the 4th inst. in which you have the goodness to inform me that you have discovered a new species of fly-catcher, and which, if the bird corresponds to your description, is, indeed, likely to prove itself hitherto undescribed, for although you speak of yourself as being a youth, your style and the descriptions you have sent me prove that an old head may from time to time be found on young shoulders! I wish you would send me one of the stuffed specimens as well as the one preserved in spirits, and wish you also to rest assured that if the little _Muscicapa_ stands as a nondescript that I shall feel pleased to name it after your friend. I have never seen a male of the Cape May warbler with the upper part of the head pure black. Have you compared the _Regulus_ with the description of _Regulus Cuvieri_? Could you not send me your bird to look at? Being on the eve of publishing the Quadrupeds of our Country, I have thought that you might have it in your power to procure several of the smaller species for me, and thereby assist me considerably. Please write to me again soon, as I must resume my travels in 8 or 10 days. Have you seen a copy of the small edition of The Birds of America which I am now publishing? Believe me, dear sir, With good wishes, your obt. sert., JOHN J. AUDUBON