| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| BORT | BISBALFORT[1281]; | TR.DR | ESP | |
| BOS | BOLSENA[114][144][900][1281]; | TR.AE | S | MEX |
| BOTA | BOTAURUS[115][1281]; | TR.DR | S | MEX |
| BOW | BOBWHITE[114][144][900][1281]; | TR.AE | S | MEX |
| BOY,2 | BOYEROS[115][1281]; | TR.DR | S | MEX |
| BPAM | BUCK-PAMPERO[145][900][1281]; | TR.AE | S | ARG |
| BPAT | BUCK-PATACON[145][1281]; | TR.AE | S | ARG |
| BPNA | BUCK-PARANA[145][900][1281]; | TR.AE | S | ARG |
| BPRE | BUCK-PANGARE[145][900][1281]; | TR.AE | S | ARG |
| BPUC | BUCK-PUCARA[145][900][1281]; | TR.AE | I | ARG |
| BQQ | BUCK-QUEQUEN[145][900][1281]; | TR.AE | S | ARG |
| BR,2 | BRANT[115]; | TR.DR | S | MEX |
| BR14 | BR-14[1281]; | TR.AE | S | BRA |
| BRE,1 | BUCK-RELEN[145][900][1281]; | TR.AE | S | ARG |
| BRL | BRASIL[145][900][1281]; | TR.AE | S | BRA |
| BRNK | BARANJKA[1281]; | TR.AE | W | YUG |
| BRS | BERSEE[900][1281]; | TR.AE | I | FRA |
| BRTN | BRITAIN[740]; | TR.AE | USA | |
| BRTR | BARTIRA[145][1281]; | TR.AE | S | BRA |
| BSAR | BUCK-SARMIENTO[145][1281]; | TR.AE | S | ARG |