The roughly 800 dolphin deaths observed off central and northern Peru are likely a result of natural causes, Fox New Latino website said on Wednesday, citing a government agency finding.
Meanwhile, deaths of more than 1,200 pelicans were blamed on starvation, owing to warming-induced migration of the cold-water fish that are the birds' food.
According to Peru's Sea Institute, human activities have been "ruled out as a direct cause of death" for the dolphins. However, the report left the exact cause of death undetermined.
As for the pelican deaths, these were attributed to lack of food, a government minister stated told a Peru radio audience on Tuesday.
Migration of cold-water fish away from the coast has followed warming of the sea surface off central and northern Peru. Most of the dead birds were found to be "very young pelicans", inexperienced in gathering their own food.
The hundreds of dead seabirds were found along a stretch of beaches in Piura and Lambayeque regions earlier this year, leading to calls for an official investigation.
A pattern change will usher in cooler air and rain to the Northwest this week.
Fung-wong will spread heavy rainfall across Eastern China, South Korea and Japan this week.
Fung-wong brings flooding rainfall across Philippines and Taiwan.
Autumn officially starts at 10:29 p.m. EDT on Monday, but it will not feel like autumn in some parts of the U.S.
After storms clipped Chicagoland early Sunday, drier air will filter into the area for the rest of the week.
A brief warmup is in store for residents of the Northeast this weekend before more fall-like conditions return.
Roosevelt Roads Naval Station Puerto Rico (1998)
107 mph wind gust from Hurricane Georges.
Skidaway Island Georgia (2007)
4 inches of rain in just one hour
New England (1938)
New England hurricane smashed across Long Island, then bisected New England. Enormous shore damage, extensive forest losses, devastating floods, $306 million damage, 600 plus dead. The storm was the fastest moving of any recorded hurricane - 58 mph. Providence, R.I. under 14 feet of water. Connecticut Rive rose to 35.4 feet at at Hartford, CT -- second highest stage ever.