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Table 3. Surveys of North County Landfill near Stockton, California - 2012-2013.
<br /> Date Time of Maximum Species Comments �
<br /> Survey # of Gulls o
<br /> b
<br /> 0
<br /> 2012Sep 4 08:00-11:15 4 flew over without landing
<br /> Sep 11 08:00-11:15 80 CA Gulls feeding. CA (100%)
<br /> Sep 18 08:00-11:15 12 CA Gulls landed but did not feed before flying away
<br /> Sep 25 08:00-11:15 140 CA Gulls feeding. CA (100%) (100 adults, 40 YOY)
<br /> Oct 2 08:00-11:30 12 CA One flock landed but did not feed
<br /> Oct 9 08:00-11:10 21 CA Flock of 21 flew over but did not land
<br /> Oct 16 08:00-11:15 1,400 CA, WE Gulls feeding. CA (90%), WE (10%) -45% YOY
<br /> Oct 29 09:00-12:00 3,200 CA, WE Gulls feeding. CA (90%), WE (10%) -45% YOY
<br /> Nov 7 08:00-11:00 4,400 CA, WE Gulls feeding. CA (80%), WE (20%); control with gliders moves gulls off
<br /> Nov 12 07:00-10:00 3,400 CA, WE Gulls feeding. CA (80%), WE (20%); control with gliders moves gulls off
<br /> Nov 26 07:00-10:00 1,600 CA, WE Gulls feeding. CA (78%), WE (22%); control with gliders moves gulls off
<br /> Dec 5 07:30-12:20 2,400 CA, WE Gulls circle site but move off when pyrotechnics and gliders used
<br /> GO Dec 19 08:00-10:30 600 CA, WE Gulls not feeding. CA (80%), WE (20%); control with gliders moves gulls off
<br /> Dec 26 08:00-12:00 3,800 CA, WE Gulls feeding. CA (80%), WE (20%); control with gliders moves gulls off
<br /> 2013
<br /> Jan 11 07:00-12:00 2,800 CA, WE Gulls prevented from feeding. CA(80%), WE (20%) during period
<br /> Jan 22 08:00-12:00 3,000 CA, WE Gulls prevented from feeding. CA (80%), WE (20%) during period o
<br /> Jan 29 08:00-12:00 2,100 CA, WE Gulls prevented from feeding. CA (80%), WE (20%) during period a
<br /> Feb 1 07:00-12:00 2,800 CA, WE Gulls prevented from feeding. CA(80%), WE (20%) -all fly by to Foothill LF a
<br /> Feb 12 08:00-12:15 2,200 CA, WE Gulls prevented from feeding. CA(80%), WE (20%) - min. estimate Q
<br /> Feb 19 08:00-12:15 4,200 CA, WE Partial control. CA(80%), WE (20%). Strong wind and rain
<br /> Feb 26 08:00-12:15 1,800 CA, WE Gulls prevented from feeding. CA (80%), WE (20%) during period
<br /> Mar 8 07:00-12:00 1,700 CA, WE All fly by to Foothill LF due to control. Return after control ends.
<br /> o Mar 22 07:00-12:00 1,200 CA, WE Gulls feed after control ends. CA (80%), WE (20%). High winds.
<br /> b Mar 29 07:00-12:00 1,400 CA, WE No gulls fed while control present. Gulls flew to Foothill LF. Heavy fog
<br /> � Apr 5 07:00-12:00 650 CA, WE No gulls fed while control present. Gulls flew to Foothill LF n
<br /> � a
<br /> Apr 10 08:00-12:00 280 CA, WE No gulls fed while control present. Gulls flew to Foothill LF
<br /> Apr 12 07:00-09:30 0 CA, WE No gulls approach landfill
<br /> w
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