"Means by which the Vulture (Vultur Aura, L.) traces its Food," Loudon's Magazine of Natural History, vol. vi, pp. 83-88. London, 1833.
Dated "Oxford, Jul. 2, 1832." Defends Audubon's account of lack of sense of smell in the Vulture, published in 1826 (see [No. 17]).
"The Means by which the Turkey Buzzard traces its Food," Loudon's Magazine of Natural History, vol. vi, pp. 162-163. London, 1833.
Signed "Walton Hall, Jany. 1, 1833." A caustic reply to the last. Reprinted in Essays in Natural History, chiefly Ornithology, First Series. London, 1838.
"Remarks on Mr. Audubon's Account of the 'Habits of the Turkey Buzzard (Vultur Aura), particularly with the View of exploding the Opinion generally entertained of its extraordinary Powers of Smelling,'" Loudon's Magazine of Natural History, vol. vi, pp. 163-171. London, 1833.
A characteristically flippant article, ending thus: "But here I will stop: I have been too long on carrion,—'neque enim toluare vaporem ulterius potui' (Ovid Met., ii, 301)."
"The Gland on the Rump of Birds," Loudon's Magazine of Natural History, vol. vi, pp. 274-277. London, 1833.