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. <br />15 <br />? <br />No. Colonies- UNK 4 <br />All Habitat . <br />No. Colonies- UNK 2 <br />River (5096) <br />lvo. Colonies- UNK 2 <br />Sandpits (50%) <br />Mean Adult UNK 9.5 <br />Terns/Colony- <br />Al1 Habitat ' <br />Adult Terns/ UNK 17..0 <br />Colony-River <br />Adult TernsJ UNK 2.0 <br />Colony- <br />Sandpits <br />Notes: RM = river miles <br />R = river <br />P = sandpits <br />UNK = not surveyed <br /> -a/ ' b/ . <br />4 13 18 12 25 24 53 53 63 <br />NS 4 9 0 0 15 9 31 30 42 <br /> (69%) (0%) (0%) (60%) (385%) (585%) (57%) (67%) <br />NS NS 4 18 12 10 15 22 23 21 <br /> (31%) (100%) (100%) (40%) (62%) (42%) (43%) (33%) <br />NS 16.3 12.5 13.7 18.8-19.7 10.2 18.3 11.3 12.0 9.3 <br />16.3 11.1 0 0 9.6 26.0 10.5 12.6 8.6 <br />NS 15.5 13.7 18.8-19.7 '10.9' 13.6 12.3 11.1 10.8 <br />a/ . <br />One colony of 6 birds was observed on-the'river in late summer of 1984 and may have been a renesting effort. This colony 4nd the birds associated with it were not <br />included in totals to avoid possible duplication. <br />b/ <br />Two additional colonies of 14 and 8 birds, respectively, were observed <br />on the river in.late summer of 1985 and may.have been renesting efforts. <br />These colonies and the birds associated with them were not included in <br />totals to avoid possible duplication.