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Further Detail, Continued Vigilance and Further Data <br />I'd like to illustrate one aspect of the herons that is seldom discussed. In 1998, an entire species was wiped out, my <br />favorite, the Black - Crowned Night Herons. They existed in substantial numbers on the island but the first year the ski <br />course was installed, they ALL disappeared. Art Hawkins, noted biologist watching the island, also made note of this. <br />120 <br />100 <br />80 <br />60 <br />40 <br />20 <br />0 <br />Number of Nests, Black- Crowned <br />Night Heron <br />First Time <br />Ski-Course <br />Nextto Nom. <br />In addition, the Great Blue Herons were greatly affected the first time the ski course was installed, and then they really got <br />hammered with it was installed again, against the agreement set by Anoka Parks, the DNR and others. I do not believe <br />these are coincidences but rather, causes. Anoka Parks is doing a great job of installing the no -wake zone buoys before or <br />shortly after ice out so there is no delay identifying the no -wake zone for the boating season. <br />14V l0 <br />120 0 <br />6fk0 <br />20x0 .1._ <br />Number of Nests, Great Blue Herons <br />r �SkiCoursetioxf to WSW- a..._ <br />Sid Coin Rums <br />k!'e 1-a r Cel +s+ <br />74 CI% CO GI c sue. <br />C4 tai (i1 c k —. <br />7.1 1"1 --I 1-4 -I N <br />`J fyr "1 tit <br />Ci <br />Cy Cy rV fJ V i J <br />Page 2 <br />