Baby orca J50 leaps out of the waters of Haro Strait between islands in British Columbia and America's Washington state, seemingly with a large stretch of water to itself.

The annual July tally of endangered Puget Sound orcas is complete, and researchers have counted 81 whales, including four calves born since last winter.

The population is higher than last July's count of 78 whales but it's still low. Listed as endangered in 2005, the whales are struggling because of pollution, lack of food and other reasons. The 6-month-old calf has been named J50 by the Pacific Whale Watch Association.

"Her energy is astounding - I guess not unlike my small kids," Michael Harris, executive director of PWWA, told Global News "She's constantly leaping into the air, and often curling up and doing belly flops."