Hello Im Texasclucker and im helping you learn 56 common poultry abbreviations!

1. LF - Large Fowl (A standard-sized chicken)
2. B, BT, BTM - Bantam (A miniature chicken)
3. 
   
4. WF - Waterfowl (Ducks & Geese)
5. SF - Standard Fowl (A standard-sized chicken)
6. APA - American Poultry Association
7. ABA - American Bantam Association
8. BB - Best of Breed
9. BV - Best of Variety
10. RB - Reserve of Breed (2nd place of Breed)
11. RV - Reserve of Variety (2nd place of that feather coloring)
12. C - Cock (Rooster older than 1-year-old)
13. K - Cockerel (Rooster younger than 1-year-old)
14. H - Hen (Female older than 1-year-old)
15. P - Pullet (Female younger than 1-year-old)
16. YT - Young Trio (2 Pullets and a Cockerel)
17. OT - Old Trio (2 Hens and a Cock)
18. Aov - Any Other Variety
19. AOB - Any Other Breed
20. SC - Single Comb
21. RC - Rose Comb
22. Med. - Mediterranean
23. Cont. - Continental
24. Amer. - American
25. R.C.C.L. - Rose Comb Clean Legged
26. S.C.C.L. - Single Comb Clean Legged
27. A.O.C.C.L. - All Other Combs Clean Legged
28. A.O.S.B. - All Other Standard Breeds
29. Ch. - Champion
30. Res. - Reserve (Runner Up)
31. ASA - American Serama Association
32. O.E.G. - Old English Game (a breed of chicken)
33. O.E.G.B. - Old English Game Bantam (a breed of chicken)
34. AGB - American Game Bantam (a breed of chicken)
35. NN - Naked Neck (a breed of chicken)
36. 
    
37. RIR - Rhode Island Red (a breed of chicken)
38. Fav - Faverolles
39. DQ - Disqualification
40. Blk - Black
41. Wht - White
42. BB Red or BBR - Black Breasted Red
43. BLRW - Blue Laced Red Wyandotte
44. SLW - Silver-laced Wyandotte
45. GLW - Golden-laced Wyandotte
46. CW - Columbian Wyandotte
47. BCM - Black Copper Maran
48. SPL - Splash
49. GDW - Golden Duck Wing
50. SDW - Silver Duck Wing
51. DT - Double Tufted (often Araucana)
52. ST- Single Tufted (often Araucana)
53. CF - Clean Faced (often Araucana)
54. DIS - Dead in Shell
55. SQ - Show Quality
56. Orp - Orpington

(please note that I basically reposted this from https://www.poultryshowcentral.com/Abbreviations.html I am not responsible for this info I wanted to post this so it was at everyone's fingertips here on byc! thank you)