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<br />- <br /> <br />~~ - ~ <br /> <br />~ <br /> <br />-- <br /> <br />-.- .-' .. - - <br /> <br />.. <br /> <br />L_~ <br /> <br />TABLE 4-1 <br />ESTIMATEll NUMBERS OF LEAST TERNS THROUGHOUT THEIR INTERIOR RANGE, 1988-1997 <br /> <br />.::~ <br />l~:") <br /> <br />Location <br /> <br />Rio Grande River - Lake <br />Casa Blanca, TX <br /> <br />Rio Grande River. Amislnd <br />Reservoir. TX <br /> <br />Ilallas County. TX . <br />Wastewater Treatment Plant <br /> <br />1988 <br />25 <br /> <br />1989 <br />10 <br /> <br />1990 <br /> <br />1991 <br /> <br />1992 <br /> <br />1993 <br /> <br />1994 <br /> <br />1995 <br /> <br />1996 <br /> <br />1997 <br /> <br />~ ..!I <br /> <br />C;) <br />,;) <br />c...:> <br /> <br />7 <br /> <br />15 <br /> <br />"'20 <br /> <br />",20 <br /> <br />",20 <br /> <br />",20 <br /> <br />27 <br /> <br />25 <br /> <br />Source: FWS (1997 and unpublished data) <br /> <br />Noles: <br />. rani,,' to'Vtrnge oflhe S\lfYC)' "'eft <br />b Aerial survey, numbers should be considered undereslinutles <br />C Represents Kansas survey only <br />d Represenls observalions froll1 u.s. side of reservoir only <br />-- No survey conducted <br /> <br />68FOD97286001R IT4./.00C 6/2//999( 10:J6 AM)/URSOWCfS <br /> <br />Sheet 3 of 3 <br />