de·coy 
(dēkoi′, dĭ-koi)
(dēkoi′, dĭ-koi)n.
1.
a. A living or artificial bird or other animal used to entice game into a trap or within shooting range.
b. An enclosed place, such as a pond, into which wildfowl are lured for capture.
2. A means used to mislead or lead someone into danger.
tr.v. (dĭ-koi) de·coyed, de·coy·ing, de·coys
1. To lure (an animal) into a trap or position to be hunted.
2. To entice or mislead by deception or into danger. See Synonyms at lure.
[Possibly from Dutch de kooi, the cage : de, the (from Middle Dutch; see to- in the Appendix of Indo-European roots) + kooi, cage (from Middle Dutch cōie, from Latin cavea).]
de·coyer n.
decoy