The origin of the name "caracara" is uncertain; it may be a Spanish or Portuguese corruption of a Tupi word<ref>http://www.merriam-webster.com/dictionary/caracara</ref> based on the sound the bird makes. The alternate scientific name ''Polyborus'' is from the Greek, referring to the bird's seemingly gluttonous appetite.<ref>http://www.peregrinefund.org/subsites/explore-raptors-2001/falcons/crstcara.html</ref>
+
The origin of the name "caracara" is uncertain; it may be a Spanish or Portuguese corruption of a Tupi word<ref>https://www.merriam-webster.com/dictionary/caracara</ref> based on the sound the bird makes. The alternate scientific name ''Polyborus'' is from the Greek, referring to the bird's seemingly gluttonous appetite.<ref>http://www.peregrinefund.org/subsites/explore-raptors-2001/falcons/crstcara.html</ref>