The deaths of wild birds on an island in the Bahamas appear to be unrelated to bird flu, officials said Thursday.

A preliminary report from experts dispatched to the island of Great Inagua to investigate the death of flamingos and other migratory birds this week stated there were fewer dead birds than first thought and that they did not seem to have died of bird flu, the national park director said.

"The experts have reported that they have seen no sign of bird flu, and no new deaths of flamingos or any other species," said Eric Carey, director of parks and science for the Bahamas National Trust.

Authorities previously reported 15 West Indies flamingos, five roseate spoon bills and a cormorant had been found dead, but experts found only five dead birds on the island, Agriculture Minister Leslie Miller said.

Great Inagua has about 60,000 West Indies flamingos, the world's largest breeding colony of this bird, which migrates through the Caribbean.