About: http://webisa.webdatacommons.org/135597191

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The pair-bond, once established, is reinforced by such activities as joint nest building and defense , and preening of one bird by the other.
http://www.w3.org/ns/prov#wasQuotedFrom	britannica.com