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Although a single exposure did not suppress lamb attacks for some of the coyotes , it did reduce or eliminate their feeding on their kills , raising questions about the differential extinction of predatory action patterns . Intensive research on and management of poisonous snakes has centered on Japan , home of the Habu , and Guam , where Brown Treesnakes have killed off many native species . Your assistance in carrying out these administrative functions will play a major role in the quality of the overall Hunter Education Program . Your reports establish a record of wolf presence and assist federal and state biologists with follow-up investigation . Your reports help agencies make decisions about appropriate wolf management . The success of lithium chloride baits has reduced the use of traps and poisons ( which kill other harmless , and more endangered , species like black-footed ferrets and California condors ) and shooting ( which does not distinguish ' innocent ' from ' guilty ' coyotes ) , and preserves the coyote 's role in the ecosystem . No animals shall be killed except during authorized open harvest seasons . The USFWS has authority to use a variety of methods to manage any wolves which attack or kill livestock or domestic animals , and remains committed to effectively dealing with depredating wolves . Your appearance and " presence " in the classroom can set the tone for learning and the lessons you have prepared . From the time it fledged , Terman 's owl roamed unrestrained killing prey , competing for territorial space and for mates , all the while sending messages , messages telling of hunts and kills , fence row romances , and intense battles over real estate and perching rights . The cuckoos are the most variable birds in social behavior and parental care : a few cuckoos are among the most social of all birds and rear their young in a common nest ; most cuckoos are caring parents that rear their own young with some females laying a few eggs in the nests of others ; while many cuckoo species are brood parasites who leave their eggs in the nests of other birds to rear , with their young maturing to kill their foster nestmates . If these low-key techniques do not work , be direct and say , " Your behavior is disturbing the class .