GLOSSARY OF TERMS 



As much as possible, we have avoided use of technical words, 

 but the following may need some explanation: 



<- a symbol meaning "is less than"; for example: 

 1 <2 reads, 1 is less than 2. 



>- a symbol meaning "is greater than". 



Bill saddle - the bill plate or section, shaped like a saddle, that 

 sits on the culmen or back 2/3 of the bill in adult skuas and 

 jaegers (Fig. 5). 



Figure 5. Measuring the chord of the nail in a skua. 



NAIL 



