June 17, 1964 
Dear Binions 
The marking of noddy terns nests is presenting a problem. It 
is difficult to keep track of the egg numbers without some type of 
marking device. Many of the egg dates placed on rocks alongside 
the nests just prior to hatching time are either lost or washed out* 
so incubation length also is lost* unless part of the eggshell remains 
after hatching. Therefore, we thought it might be best if popsicle 
sticks or something very similar were sent out for the purpose of 
nest marking. I believe these could be used effectively in most 
places. Presently there are approximately 150 eggs marked, but I 
think at least 300 ought to be sent. Another thought would be small 
discs which could be placed in the bottom of the nests* as paper 
poker chips or similar device. Popsicle sticks could be broken to 
serve the same purpose, therefore would better for all around 
purposes. 
Regards 
David A. Bratley 
A J Sa 
A / <K Is 
UJO.-ST l) t 
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