of California 1965-1972. Bird Banding. vol 46, no 3. p. 220-229. Dehaven RW, Crase FT & Miller MR. (1974). Aging Tri Colored Blackbirds by Cranial Ossification. Bird Banding. vol 45, no 2. p. 156-159. Dehaven RW, Crase FT & Woronecki PP. (1975). Breeding Status of Tricolored Blackbird, 1969-1972. Calif Fish Game. vol 61, no 4. p. 166-180. Emlen JT. (1985). Morphological Correlates of Synchronized Nesting in Tricolored Blackbird Agelaius-Tricolor Colony. Auk. vol 102, no 4. p. 882-884. Hamilton WJ, III. (1998). Tricolored blackbird itinerant breeding in California. Condor. vol 100, no 2. p. 218-226. Holcomb LC. (1971). Nest Building and Egg Laying by Redwinged Blackbirds in Response to Artificial Manipulations. Auk. vol 88, no 1. p. 30-34. Kobayashi H. (1975). Absorption of Cerebro Spinal Fluid by Ependymal Cells of the Median Eminence. In Knigge, K M et al. (Ed) Brain-Endocrine Interaction Ii the Ventricular System in Neuroendocrine Mechanisms Symposium. Shizuoka, Japan Oct 16-18, 1974 Ix+406p Illus S Karger: Basel, Switzerland; New York, NY, USA , p. 109-122, 1975. Oota Y, Kobayashi H, Nishioka RS & Bern HA. (1974). Relationship between Neuro Secretory Axon and Ependymal Terminals on Capillary Walls in the Median Eminence of Several Vertebrates. Neuroendocrinology. vol 16, no 2. p. 127-136. Palmer TK. (1976). Pest Bird Damage Control in Cattle Feedlots the Integrated Systems Approach. Proceedings of the Vertebrate Pest Conference. vol 7, p. 17-21. Payne RB & Landolt M. (1970). Thyroid Histology of Tricolored Blackbirds Agelaius-Tricolor in the Annual Cycle Breeding and Molt. Condor. vol 72, no 4. p. 445-451. Powell Gun. (1974). Experimental Analysis of the Social Value of Flocking by Starlings Sturnus-Vulgaris in Relation to Predation and Foraging. Animal Behaviour. vol 22, no 2. p. 501-505. Rains MC, Mount JE & Larsen EW. (2004). Simulated changes in shallow groundwater and vegetation distributions under different reservoir operations scenarios. Ecol Appl. vol 14, no 1. p. 192-207. Schafer EWJ & Brunton RB. (1971). Chemicals as Bird Repellents 2 Promising Agents. Journal of Wildlife Management. vol 35, no 3. p. 569-572. Skorupa JP, Hothem RL & Dehaven RW. (1980). Foods of Breeding Tri Colored Blackbirds Agelaius-Tricolor in Agricultural Areas of Merced County California USA. Condor. vol 82, no 4. p. 465-467. Unitt P. (2004). Effect of plumage wear on the identification of female Red-winged and Tricolored Blackbirds. Western Birds. vol 35, no 4. p. 228-230. Vickers ML & Hanson RP. (1980). Experimental Infection and Serologic Survey for Selected