“…In pigeons, the minimum lethal dose of nicotine (subcutaneous) is about 5 mg/kg (Meyer, 1891), which is similar to the lethal dose when administered intravenously (Hanzlik and Wood, 1929), and not greatly different from the lethal intramuscular dose of 9 mg/kg (Feurt et al, 1958). Quantities of 1 mg or less intravenously or subcutaneously are lethal for hens (Hofstatter-Von, 1923), and the LD50 in canaries is 29 mgjkg subcutaneously (Gaede, 1940).…”