On Jul 23, 2014, at 9:44 PM, David Bailey <davidcbaileyoregon@xxxxxxxxx> wrote: > This is a good cautionary Jeff. I believe that the size dimorphism is the > opposite of what you stated though, and the opposite of the majority of the > those in the sandpiper family (SCOLOPACIDAE). The male is the larger sex, the > female Pectoral is the smaller. > David - you are probably right. I thought I recalled that female Pectorals were larger. As you mentioned, it varies by species in members of the genus: " Males are larger than females in ruffs and several sandpipers, but are smaller than females in the knots, curlews, phalaropes and godwits. The sexes are similarly sized in the snipes, woodcock and tringine sandpipers."