Narrative:

On converging ILS runway 13R at dfw, first officer got approach lights at +/-800 ft AGL. He called birds at 12-1 O'clock position, at +/-500 ft. I saw large, strung out, flock of small, black sparrows from my 10-1 O'clock position, slightly below us, to above us at 1 O'clock position. (Below us at 10 O'clock position) as we were descending, 1 DOT above GS for B767 wake avoidance, it appeared we were about to hit this large flock of birds (moving from left to right). I turned right 15 degree bank and nosed aircraft down to avoid birds. Approach was not stable any longer, so I went around. First officer and I called tower dfw 4 times to advise of go around, no answer. Tower called with question, 'air carrier are you going around?' we said, 'yes, tried to call you!!' postflt revealed that we missed all birds.

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Original NASA ASRS Text

Title: EMB145 CREW MANEUVERED TO AVOID BIRDS ON FINAL APCH AT DFW.

Narrative: ON CONVERGING ILS RWY 13R AT DFW, FO GOT APCH LIGHTS AT +/-800 FT AGL. HE CALLED BIRDS AT 12-1 O'CLOCK POS, AT +/-500 FT. I SAW LARGE, STRUNG OUT, FLOCK OF SMALL, BLACK SPARROWS FROM MY 10-1 O'CLOCK POS, SLIGHTLY BELOW US, TO ABOVE US AT 1 O'CLOCK POS. (BELOW US AT 10 O'CLOCK POS) AS WE WERE DSNDING, 1 DOT ABOVE GS FOR B767 WAKE AVOIDANCE, IT APPEARED WE WERE ABOUT TO HIT THIS LARGE FLOCK OF BIRDS (MOVING FROM L TO R). I TURNED R 15 DEG BANK AND NOSED ACFT DOWN TO AVOID BIRDS. APCH WAS NOT STABLE ANY LONGER, SO I WENT AROUND. FO AND I CALLED TWR DFW 4 TIMES TO ADVISE OF GAR, NO ANSWER. TWR CALLED WITH QUESTION, 'ACR ARE YOU GOING AROUND?' WE SAID, 'YES, TRIED TO CALL YOU!!' POSTFLT REVEALED THAT WE MISSED ALL BIRDS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.