Table 1. Antibiotic resistance of single randomly selected E. coli isolates from bird fecal samples.

Antibiotic	Colony by feeding site
	“City Dump” (n = 75)	“Offshore” (n = 78)
Tetracycline	27	32
Ampicillin	19	19
Streptomycin	15	14
Chloramphenicol	2	8
Nalidixic acid	2	2
Cefadroxil1	4	0

¹Cefadroxil resembles cefalexin and is used to screen for ESBLs as part of the recommendations by the SRGA.