But it later has more luck when it launches from the sea and acrobatically snaps a young tern with a sensational mid-air flip.
Legendary broadcaster Sir David Attenborough heightens the drama with his customary gripping commentary with tension-building music in the background.
Asked what projects he is working on at the moment, he said: 'I have a film about ants behaving in a rather odd way and ichthyosaurs, which are extinct fossil sea dragons.'I have a programme about eggs and how remarkable eggs are, and I have a story about a Victorian captive elephant.
osunlade the dating game - Fish of the sea dating
The condition, called toxic shock, afflicted a short-finned pilot whale in the Atlantic off the coast of the Canary Islands, and illustrates the impact humans have on the oceans.
The dead calf was carried by its apparently grieving mother for days and turned white.
And the veteran broadcaster, who is currently working on four filming projects and publicising Blue Planet II, has revealed that he sees no reason why he cannot live to over 100.
After a study showed the fastest-growing age group is the over-100s, he was asked whether he saw any reason why he couldn't join them. He has always maintained that he will keep working until the BBC decides his time is up.
Series producer James Honeyborne said: 'It's one thing seeing a fish flying through the air, that's unexpected enough.'But then seeing a fish flying through the air and catching a bird in its mouth, wow... The fish launches out of the water with phenomenal speed and acceleration and catches this bird in mid-air.
And we filmed it in ultra slow-motion.'Giant trevallies, which can hunt alone or as a school, prey on tens of thousands of terns that take off from shorelines in the Indian and Pacific Oceans.
Edible sea plants, such as some seaweeds and microalgae, are widely eaten as seafood around the world, especially in Asia (see the category of sea vegetables).
In North America, although not generally in the United Kingdom, the term "seafood" is extended to fresh water organisms eaten by humans, so all edible aquatic life may be referred to as seafood.
Seafood is often distinguished from meat, although it is still animal and is excluded in a strict vegetarian diet.
Seafood is an important source of protein in many diets around the world, especially in coastal areas.
'But it happened randomly and very fast so we didn't know how we were ever going to get a camera on the action.''It was only after a week of frustration that the crew finally captured the shots they wanted.'We got it, they're amazing shots.