Recycling an old nest

6 weeks ago I filmed a hummingbird nest in our yard on the Bahamian island of Eleuthera which was briefly occupied by a soon-to-fledge youngster (https://www.youtube.com/watch?time_continue=3&v=bzPt7-ME9uo). Today, sitting under the shade of the tropical almond that sheltered that nest, I noticed a hummer briefly fussing at the nest. She was making darting movements with her bill and I thought she was rebuilding the nest, perhaps for a new brood. But it was too quick to be sure what was happening. So I fetched my camcorder and waited for her to return. After a half an hour she did return and started fussing again. It only lasted a few seconds but I got a brief video, and reviewing the footage one can see clearly she's rapidly snatching fragments of her old nest - presumably to use them elsewhere. In a way I'm rather relieved she's not going to re-occupy this old nest, because, as they do several times a year, the almond is in the process of losing all its leaves, and the nest would be exposed to the fierce sun. I'll try to find the new nest she's building. 4X slo-mo.