Father Guido and son Patrick Claes have obtained their own pigeons line over the years, by interbreeding their pigeons with the pigeons of successful breeders from around Vorselaar. In their dovecote the following best pigeon fanciers are represented:
- Jos Peeters
- Brüder Van Laar aus Pulle
- Vic Janssena
- Heremans Leo
- Staf Habraken
- Frans Heylen
- Jos Lock , 3-fache Meister Hafo Lier
The Claes family bought in the Peeters complete sale the Blauwke van Olen. Blauwke van Olen is father of Rubieke B89 / 6167883, which is the father of Sterke Blauwe B96 / 6488224. From brothers Laaer came the Van Laer-Duivin B92/6238867, mother of famous Kameel B96/6488272 (father of Figo and Zidane).
The pigeons from Janssen Vic can be recognized by their names in pedigrees: Grote Vic B85 / 6070136 is the father of Lichte Vic B92 / 6617819 and Asduivin B92 / 6617819; pigeons that guarantee success to every dovecot in which they are located. In the Claes line, the Duc pigeons from Ducheyne-Scheirs are also included: Blauwe Duc, Zuster Duc, Lichte Duc and later the daughter Cerafin B98 / 6123516. Cerafin was also a wonderful pigeon that achieved impressive results; e.g. 5th place in the Nat. Limoges (with the total of 19,676 pigeons); first place at prov. Vierzon (total of 2,911 pigeons), the first place at prov. Argenton (total of 1,351 pigeons), etc. In addition, one must not forget the bird De Staf B95 / 6587571 of Hebraken. Of all the birds from the breeder Frans Heylen, the Claes family had the greatest success with the dove Witpen Sus B96 / 6491749. The small Van Lock is the father of BLAUWE AS B92 / 6617835 (1st ace-pigeon in 1993 Hafo Lier), known as the original pigeon of the Claes colony and together with the CRACKDUIVIN (1st ace-pigeon in 1995 and 2nd ace-pigeon in 1996 Hafo Lier) forms the golden couple.
In 2004, at the peak of their success, the SG P&G Claes has stopped with keeping pigeons, mainly for personal reasons. On the 14th of November 2014, the complete sale was held and the best Claes' pigeons (Lichte Vic, Figo, Zidane, Ronaldo, etc.) were sold to buyers around the world.