The potential in London is enormous if they all succeed , but due to a number of factors, they are not reaching there full capabilities, unstable weather, egg rolling, poor nest site selection and in some recent cases, infertility. If they can get past all this, the success rate would be far higher, and until recently, It did not occur to me that there could be other factors in London that could effect them to the extent that it would interrupt breeding.
In this period of time, the resident pair were kept extremely busy defending there site and territory as not only singles tested them but also another pair on the edge of there territory. For the full 5 days, they were challenged no less than 4 times a day, on one day, they received 6 visits by other singles/Immatures and pairs, I am presuming it is just one pair. Saying that, on at least 5 occasions they came in so high they could have come from anywhere in London, they were dots, the only reason I saw them was due to the reaction of the resident pair.
|Intruding immature female being driven off|