TY - GEN AU - Sharp,P J AU - Moss,R TI - A comparison of the responses of captive willow ptarmigan (Lagopus lagopus lagopus), red grouse (Lagopus lagopus scoticus), and hybrids to increasing daylengths with observations on the modifying effects of nutrition and crowding in red grouse SN - 0016-6480 PY - 1981///1221 KW - Animals KW - Birds KW - physiology KW - Crowding KW - Dietary Proteins KW - administration & dosage KW - Feathers KW - Female KW - Light KW - Luteinizing Hormone KW - blood KW - Male KW - Oviposition KW - radiation effects KW - Periodicity N1 - Publication Type: Comparative Study; Journal Article UR - https://doi.org/10.1016/0016-6480(81)90103-9 ER -