2019 OCTOBER DECEMBER WASP DELTA, amazing sightings, INSTINCT FAILURE

Israel
VERY INTRESTING
A very interesting question for specialists: in 2019, from October to December, I observed and documented three cases of the construction of jar nests by wasps of the DELTA species. In two cases, after DELTA covered the entire structure with a layer of sand and left the site, it rained and destroyed all the nests. And here is the first part of the question: does this species not have an instinct for protection from the destruction of rain?
On the 3rd occasion, I observed nest building from 29 October to 8 November. This Delta did not fly away, but for nine days for many hours treated the entire structure with water, which was brought from a pond close to this place. On November 17, she left this place, after this rained and not a single centimeter was destroyed. And on December 19, I discovered that three adult wasps flew out of their nests. And by December 29.12.2019, there were already six of them
And now, the second part of the question: the third wasp worked an instinct that did not work for the first two, or she learned the hard way, or some other new development of events

Видео 2019 OCTOBER DECEMBER WASP DELTA, amazing sightings, INSTINCT FAILURE канала Vika Ladizhinskaya