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The BBL code systems: Collisions with rare forms

In these cases, two names abbreviate to the same code under the rules, but since one of the colliding names is so much more common than the others, the commoner name is allowed to use the collision form and the rarer name is assigned an alternate. The author feels that this practice is highly unsafe.

     1. BAGO Barrow's Goldeneye        BRNG Barnacle Goose
     2. BBWA Bay-breasted Warbler      BWAG Black-backed Wagtail
     3. BRSP Brewer's Sparrow          BANP Band-rumped Storm-Petrel
     4. BRWA Brewster's Warbler        BRWX Black-rumped Waxbill
     5. CAGO Canada Goose              CACG Cackling Goose
     6. GCWA Golden-cheeked Warbler    GOLW Golden-crowned Warbler
     7. GRFL Gray Flycatcher           GREF Greater Flamingo
     8. GRWA Grace's Warbler           GRAW Gray Wagtail
     9. OCWA Orange-crowned Warbler    ORAW Orange-cheeked Waxbill
    10. RTHU Ruby-throated Hummingbird RUFH Rufous-tailed Hummingbird
    11. SOSP Song Sparrow              SOOP Sooty Storm-Petrel
    12. SPSA Spotted Sandpiper         SPOS Spoonbill Sandpiper
    13. STFL Scissor-tailed Flycatcher STOF Stolid Flycatcher
    14. STSA Stilt Sandpiper           SHAS Sharp-tailed Sandpiper
    15. WCPI White-crowned Pigeon      WHIP White-cheeked Pintail
    16. WHSW Whistling Swan            WHOS Whooper Swan

Next: A critique of the Bird Banding Lab code system
See also: The BBL code system: Collision problems
Previous: The BBL code systems: Two-way collisions
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John W. Shipman,
Last updated: 2005/02/26 23:49:46