Above & Below: Siskin no.1.
Above & Below: The tail shape (pointed) in the photograph above is indicative of a juvenile bird (born this year) whereas the rounded tail shape in the photograph below is that of an adult (born last year or before).
Many of the 14 Siskin caught were males and many of them juveniles. None had rings on, though I am hopeful that I will get some interesting recoveries as there is a good chance of this with Siskins.
Interestingly, the biometrics (wing length & weight) were remarkably similar amongst all the birds (wing length 73 or 74mm and weight around 12.3 or 12.4grams).
See http://greenwoodringer.blogspot.com/ for more info/photographs.
See http://priorycountrypark.blogspot.com/ for info/photographs of Saturday's session at Priory Country Park.
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