SHORT REPORT On reading colour rings
The use of engraved plastic leg rings (Ogilvie 1972) has proved an extremely useful tool for long-term studies of individual birds within populations. Several studies have examined the longevity of marks (eg Rees et al 1990) and the colour fastness of certain materials (eg Lindsey et al 1995). In ad...
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Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.534.2584 http://blx1.bto.org/pdf/ringmigration/24_1/mitchell.pdf |