anchor.diff:  "1515","Leonard Lee","blue bar","cock","31/88",1518.8,"OLD BIRD"
   "1516","Jones Bros Lo","blue bar","hen","30-Aug",1518.1,"OLD BIRD"
   "1517","Leonard Lee","blue bar","hen","32/88",1518,"OLD BIRD"
  -"1518","Hap Hilton/55","blue bar","cock","102.067",1516,"OLD BIRD"
  -"1519","FRALEY/SKUR/8","complex","cock","124.287",1511.5,"OLD BIRD"
  +"1518","Hap Hilton5","blue bar","cock","102.067",1516,"OLD BIRD"
  +"1519","FRALEY/SKUR","complex","cock","124.287",1511.5,"OLD BIRD"
   "1520","FRALEY/SKURSK","complex","cock","8-Feb",1511.5,"OLD BIRD"
   "1521","FRALEY/SKURSK","blue bar","cock","8-Mar",1511.4,"OLD BIRD"
  -"1522","Malone Loft/4","complex","hen","177.682",1510.5,"OLD BIRD"
  -"1523","B Crossen /53","blue check","hen","101.597",1506,"OLD BIRD"
  -"1524","B Crossen /72","blue check","cock","102.025",1504,"OLD BIRD"
  -"1525","Lowells Gun/9","dark check","cock","98.794",1504,"OLD BIRD"
  +"1522","Malone Loft","complex","hen","177.682",1510.5,"OLD BIRD"
  +"1523","B Crossen3","blue check","hen","101.597",1506,"OLD BIRD"
  +"1524","B Crossen2","blue check","cock","102.025",1504,"OLD BIRD"
  +"1525","Lowells Gun","dark check","cock","98.794",1504,"OLD BIRD"
   "1526","B Crossen","blue bar","hen","Feb-72",1503.7,"OLD BIRD"
   "1527","B Crossen","blue bar","cock","Mar-72",1503.6,"OLD BIRD"
   "1528","B Crossen","blue bar","hen","Apr-72",1503.6,"OLD BIRD"
  -"1529","Sundown Lof/2","complex","hen","161.928",1503.4,"OLD BIRD"
  +"1529","Sundown Lof","complex","hen","161.928",1503.4,"OLD BIRD"
   "1530","Leonard Lee","blue bar","cock","Feb-80",1501.6,"OLD BIRD"
   "1531","Leonard Lee","blue bar","cock","Mar-80",1501.2,"OLD BIRD"
  -"1532","D J Loft  /22","blue bar","cock","100.251",1500.9,"OLD BIRD"
  +"1532","D J Loft2","blue bar","cock","100.251",1500.9,"OLD BIRD"
   "1533","KEN FRALEY","complex","hen","8-Mar",1500.6,"OLD BIRD"
   "1534","Leonard Lee","blue check","cock","Apr-80",1500.6,"OLD BIRD"
  -"1535","Jerry King /5","blue bar","cock","154.013",1499.5,"OLD BIRD"
  +"1535","Jerry King","blue bar","cock","154.013",1499.5,"OLD BIRD"
   "1536","Jack Chavis","complex","hen","14-Feb",1499.1,"OLD BIRD"
  -"1537","Matt Hazen /2","blue check","hen","176.101",1498.1,"OLD BIRD"
  -"1538","Rob Wilson/20","blue check","cock","93.296",1497.8,"OLD BIRD"
  +"1537","Matt Hazen","blue check","hen","176.101",1498.1,"OLD BIRD"
  +"1538","Rob Wilson0","blue check","cock","93.296",1497.8,"OLD BIRD"
   "1539","Riggins,Orval","blue bar","cock","17-Apr",1497.6,"OLD BIRD"
  -"1540","Al Fenrich /4","blue bar","cock","166.732",1496.4,"OLD BIRD"
  +"1540","Al Fenrich","blue bar","cock","166.732",1496.4,"OLD BIRD"
   "1541","STEVE LESLEY","complex","hen","14-Apr",1496.4,"OLD BIRD"
   "1542","STEVE LESLEY","complex","cock","14-May",1496,"OLD BIRD"
   "1543","KEN FRALEY","blue bar","cock","8-Apr",1494.8,"OLD BIRD"
  
positive.code: "837","DOUG WHITE","blue bar","hen","9/18",1493.1,"YOUNG BIRD"
  "838","BRUCE GORDON","complex","cock","5/32",1488.7,"YOUNG BIRD"
  "839","E&S GRABANSKI","blue bar","cock","2/16",1487.2,"YOUNG BIRD"
  "840","DAVE SKURS/31","complex","cock","115.043",1485.7,"YOUNG BIRD"
  "841","Jerry King/15","blue check","hen","148.414",1485.7,"YOUNG BIRD"
  "842","DAVE SKURSKI","complex","cock","2/31",1484.4,"YOUNG BIRD"
  "843","DAVE SKURSKI","complex","hen","3/31",1484.1,"YOUNG BIRD"
  "844","DAVE SKURSKI","yellow var","cock","4/31",1483,"YOUNG BIRD"
  "845","DAVE SKURSKI","complex","cock","5/31",1483,"YOUNG BIRD"
  "846","Jack Chavi/19","complex","cock","109.719",1480.5,"YOUNG BIRD"
  "847","TITO S LOF/25","blue bar","cock","116.171",1479.8,"YOUNG BIRD"
  "848","PALOMERA  /16","complex","cock","123.155",1479.4,"YOUNG BIRD"
  "849","Jack Chavis","complex","hen","2/19",1476,"YOUNG BIRD"
  "850","BRUCE GORDON","complex","hen","6/32",1473.4,"YOUNG BIRD"
  "851","BRUCE GORDON","complex","hen","7/32",1473.4,"YOUNG BIRD"
  "852","BRUCE GORDON","complex","hen","8/32",1473.2,"YOUNG BIRD"
  "853","BRUCE GORDON","complex","cock","9/32",1473,"YOUNG BIRD"
  "854","BOB GLASS /20","blue bar","hen","113.013",1472.8,"YOUNG BIRD"
  "855","BRUCE GORDON","complex","hen","10/32",1472.8,"YOUNG BIRD"
  "856","BRUCE GORDON","complex","hen","11/32",1472.8,"YOUNG BIRD"
  "857","Mike Strevel","blue bar","hen","11/13",1467.9,"YOUNG BIRD"
  "858","KARL WOHLM/16","complex","cock","105.625",1464.4,"YOUNG BIRD"
  "859","KEN FRALEY/20","complex","cock","116.233",1462.3,"YOUNG BIRD"
  "860","Jerry King","blue check","cock","2/15",1461.1,"YOUNG BIRD"
  "861","Jerry King","blue check","hen","3/15",1460.6,"YOUNG BIRD"
  "862","BRUCE GORDON","complex","cock","12/32",1460.5,"YOUNG BIRD"
  
negative.code: "1496","B Crossen","blue bar","cock","23/66",1529.6,"OLD BIRD"
  "1497","B Crossen","blue bar","cock","24/66",1529.2,"OLD BIRD"
  "1498","White Hope Lo","complex","hen","May-49",1527.4,"OLD BIRD"
  "1499","EARLY DAWN","dark check","hen","142.584",1527.2,"OLD BIRD"
  "1500","Leonard Lee","blue check","cock","25/88",1525.7,"OLD BIRD"
  "1501","Leonard Le0","blue bar","hen","101.478",1525.3,"OLD BIRD"
  "1502","White Hope Lo","complex","hen","Jun-49",1523.8,"OLD BIRD"
  "1503","Riggins,Or7","blue bar","cock","133.14",1523.2,"OLD BIRD"
  "1504","Riggins,Orval","blue check","hen","17-Feb",1523.2,"OLD BIRD"
  "1505","Leonard Lee","blue bar","hen","26/88",1522.1,"OLD BIRD"
  "1506","Leonard Lee","complex","cock","27/88",1521.8,"OLD BIRD"
  