In 2002, an Atlas mapping of the breeding birds in Gediz Delta Ramsar Site in western coast of Turkey was performed. The study area was divided into 305 1x1 km square UTM grids. In each UTM grid, 3 point counts with duration of 10 minutes each and separated at least 300 meters were applied. Standard EBCC breeding codes were used for the quantification. Special field recording forms were designed and UTM coordinates, time of day, habitat types, threats and the bird species that were seen and/or heard were noted along with their breeding code for each of the points separately. The study was completed for a total of 152.5 hours of bird atlas work. GIS mapping and analyses were used for the evaluation of the results. Distribution and relative abundance maps for each bird species were prepared. Out of 5591 records, 494 (8.8 %) were classified as confirmed breeding, 963 (17.2 %) were classified as probable breeding, and 2634 (47.1 %) may be classified as possible breeding. A total of 129 bird species were recorded throughout the study. Breeding evidence was obtained for 97 species (75.2 %); 49 (50.5 %) were classified as confirmed breeding, 23 (23.7 %) were classified as probable breeding, and 25 (25.8 %) were classified as possible breeding. Among the breeding species, three species were SPEC 1 (Falco naumanni, Pelecanus crispus, Emberiza cinerecea), 12 were SPEC 2, and 34 were SPEC 3. Among their SPEC statuses, 7 species were vulnerable (Tadorna ferruginea, Buteo rufinus, Burhinus oedicnemus, Vanellus spinosus, Sterna nilotica, Coracias garrrulus and Cercotrichas galactotes,), 4 were rare, 2 were localised, 18 were declining, and 18 were depleted species The details of the survey, the results and some important management suggestions for the Delta will be described.