HO 1 
■breeding data 
March. 19* 1963 ™ ^irtz: n We have noted some sma.ll groups of gray-backed 
terns in the air about the island, but they do not appear to 
/ be nesting now 
—— B.Amerson: (pers . comm.) reports that some eggs were found. 
GRAI-BAOKuD EiiBH 
July 6-8, 1963 
■ 1 - 
Sibley: 
5 seen, 1 collected 
October 9-1^» 1963 —- Sibley: Count of 1? on roosting group* 2 collected 
October 18-21, 1963 --- Sibley: Maximum count of 37 
■-c. -1 -^r — ~ 
- ..... 
February 3-13, 1964 - FCo: 20-30 roosting along leach 
February 8, 1964 ——— 
— Clapp: " A group of about 30 gray-backed terns were seen 
high on the west beach about 200 yds. north of the lighthouse 
tower. M 
July 22-25, 1964 —-Sibley summary : " 100 plus or minus adults, A number 
of fledged young. One chick still on ground. " 
xt 'J -V* V ' 
. :«'>vvvv, v -' f> ** 
October 9, 1964 
■Sibley 2 nest found SV side (2 eggs & 1 egg)» another 1 egg nest 
found later. 
/? 
October 10, 1964 --Sibley: About 15 ##*#& young birds on West side all flying 
50 adults 
Oct. 9-31 1954 
—SIBLEY SUMMARY: 89 4 nest with eggs found SW side - probably a few 
more. Estimated 50 adults and 15 immature a J® 
