A couple of opportunities for those who are interested:

London Natural History Society is offering a free, online series of talks on Thursday evenings at 18.30.  To view the programme and register for any of them, follow the link.
https://www.eventbrite.co.uk/o/london-natural-history-society-30790245484

Also, the Zoological Society of London is offering a series of lunchtime talks in February and March which you can either join, or watch on YouTube after the event. Go to:
https://www.zsl.org/science/whats-on/wild-lunch-wednesdays