- Thefirstdraftsheproduceddescribedtheintrudersas"gallant".Matingblackbirdswilldefendtheirterritoryagainstintruders.Thebarbedwirefenceroundtheperimeterdiscouragedintruders.Sometimesasuddenshiftincolorcanbeusedtostartlepotentialpredatorsorthreatenintr...
- 20138