[ ] 



ved a Valve, or Trap-door, to fecure the 

 Entrance, thereby defending its Progeny 

 from the Attack of fome Enemy of the 

 Species. 



Nidi Avium, Nefts of Birds. This Ti- 

 tle affords as great a Variety as the laft, 

 and for the fame Reafons. It is impofTi- 

 ble to attempt noticing all the Nefts that 

 are here preferved as Specimens they 

 are both numerous and curious it will 

 be fufficient to point out to the Reader 

 a few moft deferving Attention, and 

 even of thofe little mull be faid. The 

 hanging Nells claim our firfl Regard, 

 which are made by Birds, Inhabitants of 

 both the 7ndies ; they hang by a flender 

 Filament to a fmall Twig of a Tree, and 

 are by that Means put out of the Reach 

 of any Enemy of the quadruped or rep- 

 tile Kind. Thefe Nefts are chiefly made 

 of a Sort of Grafs without, difpofed in 

 the Form of a Net, and lined with dif- 

 ferent Kinds of foft Subftances within ; 

 but there are Birds in Siberia, that make | 



hanging 



