Being a wee bit incapacitated by having tweaked my back the other day 😦 I sat down to catch up with some of the very basic statistical analysis that I do of the daily bird sightings that we record. It is so basic that all it amounts to is collating the daily average for each month as it is completed ! We began to do this in 1992 which, if my mental arithmetic serves amounts to exactly 20 years of records ! which might be of not much practical use to anyone but is at least interesting to us to look back on. The monthly averages are recorded on a year by year basis and it is this monthly average comparison that I have just had a quick look at and it IS interesting .
The January average for this year was, at 15.03 species per day , the equal best ever for this month, a direct consequence of a more intensive feeding regime maybe, but, at least also in part due to the maturing of various tree and shrub planting which provides both more cover and food.
It was our best February ever over these 20 years with a daily average of 17.35 which compared to the previous best February average of 15.46. Nearly an extra 2 species a day is quite a jump. Reasons as mentioned above I imagine.
March , April and May averages were pretty much typical for these months over the years, though there have been peaks and troughs as you would imagine.
We had the third worst ever June with a figure of 16.43. Compare this to the fact that the two best ever monthly averages over the two decades were both June months with figures of 30.13 in 1996 and 28.50 in 1997. The difference is huge and can only in part be put down to the poor weather through this so-called summer ! The water birds normally associated with a successful breeding season on the main pond were seriously affected by the visit of Otters during the critical period. There are definitely other factors that impinge on this dramatic difference in averages which I would like to discuss here at a different time.
As in June the July figure was the third worst ever, same factors apply !
We have just had a fairly normal August for bird numbers.
As I said at the start it may be that these figures are of interest to only ourselves as long-term occupiers of the land. The records relate to bird species that are recorded either by sight or by sound as being anywhere on or above the Willowbog Farm area.
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