. Bulletin. Histoire naturelle ; l'histoire naturelle. Septembre, 1943 Brown &AMP ; Yeager : enquête auprès de 489 ressources fourrures d'enregistrements de date récente sont données dans le rapport de Mohr. Dans sa présente des chiffres, les coyotes en eux-mêmes constituent peu ou pas de problème dans l'Illinois, et bon nombre des plaintes qui leur sont associées sont populairement dans re- réalité associée à l'état sauvage ou de chiens. Dans le cas où les coyotes sont nombreux, des mesures de contrôle peuvent bien sûr être nécessaire ; tout envisagé stat- utes et d'action par rapport au contrôle des coyotes devrait inclure des chiens sauvages. La capture de 91 coyotes calculé f

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. Bulletin. Natural history; Natural history. September, 1943 Brown & Yeager: Survey of Fur Resource 489 of records of recent date are given in the Mohr report. In its present numbers, coyotes in them- selves constitute little or no problem in Illinois, and many of the complaints popularly associated with them are in re- ality associated with wild or free-ranging dogs. In the event that coyotes become numerous, control measures may of course become necessary; any contemplated stat- utes and action relative to control of coyotes should include wild dogs. The catch of 91 coyotes calculated for 1938-39 is believed to be based on too few data to be reliable. A catch of 25 per year is considered much more likely. Otter The otter, if not actually extirpated from Illinois, is present only in straggling numbers. The most recent records for the state are given in the Mohr report. This species has probably been of no appreci- able importance in the Illinois fur trade since about 1900. In view of the several large rivers in and bounding the state, and particularly the large backwaters along the Illinois and Mississippi rivers that have formed behind navigation dams, there is undoubt- edly some suitable otter range in the state, fig. 28. Numerous deep, wooded, clear- water sloughs making up part of such backwaters offer ample food, water and seclusion. With continued protection, w'hich fortunately has been given this spe- cies since 1929, it would not be surpris- ing to see otters regain a part of their former Illinois range. It is not considered likely, however, that they will appear in sufficient numbers, at least in the near future, to justify an open season. Beaver I he beaver has been of no appreciable importance in the Illinois fur trade since about 1850. This species was complete- ly extirpated in the state some time after Forbes (1912) had reported on the native animal resources of Illinois. It was re- introduced in 1935, and now appears to be established in Pope an

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