AN ACR DHC8 CAPT WANTS THE ASRS TO KNOW ABOUT THE BIRD ACTIVITY AT TLH.

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I WISH TO BRING TO THE ATTN OF NASA A VERY SERIOUS BIRD HAZARD AT TLH. I ALREADY HAVE BROUGHT IT TO THE ATTN OF THE TWR; AND THE PROB HASN'T BEEN RECTIFIED. THERE IS A SEWAGE TREATMENT PLANT 1/2 MI SE OF RWY 27. THIS ATTRACTS A SMALL WHITE BIRD (TYPE UNKNOWN). ALSO; REFUSE IS DISTRIBUTED ON THE ARPT GNDS (TREATMENT RESIDUE). THIS ALSO ATTRACTS BIRD FLOCKS THAT LOITER NEAR THE WINDSOCK ON THE N SIDE OF RWY 27. THIS IS RIGHT NEAR THE ROTATION POINT OF OUR ACFT. 2 WKS AGO; WE HAD TO EXECUTE A GAR DUE TO A FLOCK OF 150 BIRDS TRAVERSING THE APCH END OF RWY 27. WE LANDED RWY 36 THEREAFTER. SOME DAYS; NO BIRDS ARE PRESENT. PROB SEEMS TO BE ERRATIC. TWR WILL NOT EVEN BROADCAST A BIRD ADVISORY ON THE ATIS! THEY CAN SEE WHEN BIRDS ARE PRESENT MIDFIELD; A BIRD STRIKE/ABORT BY OUR COMPANY ACFT IS ONLY A MATTER OF TIME! CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR FLIES THE DHC8 FOR AN ACR. HE BELIEVES THAT THE ATCT 'PLAYS DUMB ABOUT ITS BIRD PROB;' THAT THE ATCT 'IS IN DENIAL.' THE RPTR IS NOT SURE OF THE BIRD TYPE; BUT THEY MAY BE MOSTLY EGRETS; POSSIBLY GULLS. TLH NEVER PUBLISHES A BIRD CAUTION ON THE ATIS NOR ON NOTAMS. THE RPTR IS NOW AWARE OF THE FAA SAFETY HOTLINE.