One of the birds involved – which the project has named Mrs O – has previously nested at the site but she has been joined by a new female, designated "F2", and young male.
Ms Bennett said that up to this point the relationship between the three was "looking good".
"The only tension witnessed so far has been on the arrival of a fish delivery from the male as the two females both make a grab for it," she said.
"Mrs O usually wins the fish and flies off to feed but has been seen to return with a portion remaining and letting the other female have it.
"This nest behaviour with all the birds in the same nest is very rare and as far as we know it is the first time this has ever been on a livestream camera with most other research involving such a set-up previously conducted through distant observation.
"Getting to watch this saga close up as the season unfolds is exciting both for the drama but also for the important research insights it will allow."
