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===Diet=== The osprey is [[Piscivore|piscivorous]], with fish making up 99% of its diet.<ref name="evans82" /> It typically takes live fish weighing {{cvt|150|-|300|g}} and about {{cvt|25|-|35|cm}} in length, but virtually any type of fish from {{cvt|50|g}} to {{cvt|2|kg}} can be taken.<ref name="Ferguson-Lees2001" /> Even larger {{cvt|2.8|kg}} [[northern pike]] (''Esox lucius'') has been taken in [[Russia]].<ref>Adrianova, Olga V. & Boris N. Kashevarov. "Some results of long-term raptor monitoring in the Kostomuksha Nature Reserve." Status of Raptor Populations in Eastern Fennoscandia. Kostomuksha (2005).</ref> The species rarely scavenges dead or dying fish.<ref name="Ferguson-Lees, J. 2001" /> Ospreys have a vision that is well adapted to detecting underwater objects from the air. Prey is first sighted when the osprey is {{cvt|10|-|40|m}} above the water, after which the bird hovers momentarily and then plunges feet first into the water.<ref name="BNA" /> They catch fish by diving into a body of water, oftentimes completely submerging their entire bodies. As an osprey dives it adjusts the angle of its flight to account for the distortion of the fish's image caused by [[refraction]]. Ospreys will typically eat on a nearby perch but have also been known to carry fish for longer distances.<ref>{{cite book |last1=Dunne |first1=P. |title=Hawks in flight : the flight identification of North American raptors |date=2012 |publisher=Houghton Mifflin Harcourt |location=Boston |isbn=978-0-395-70959-7 |edition=Second}}</ref> Occasionally, the osprey may prey on [[rodent]]s, [[rabbit]]s, [[hare]]s, other [[mammal]]s, [[snake]]s, [[turtle]]s, [[frog]]s, [[bird]]s, [[salamander]]s, [[conch]]s, and [[crustacean]]s.<ref name="Ferguson-Lees, J. 2001" /><ref>{{cite web |url=https://www.peregrinefund.org/explore-raptors-species/osprey/osprey | title=Osprey |website=The Peregrine Fund}}</ref><ref name="Goenka1985" /> Reports of ospreys feeding on carrion are rare. They have been observed eating dead [[white-tailed deer]] and [[Virginia opossum]]s.<ref>{{cite web |url=https://animaldiversity.org/accounts/Pandion_haliaetus/ |title=''Pandion haliaetus'' (Osprey)|website=[[Animal Diversity Web]]}}</ref> <gallery mode="packed" heights="110"> File:Osprey on nest.jpg File:Osprey Fish Nictitating.png|American osprey with [[American gizzard shad]] File:Pandion haliaetus -San Francisco Bay, California, USA-head-8 (2).jpg|American osprey with scraps of fish on its beak File:WesternOsprey (cropped).jpg|Eurasian osprey feeding on a fish in [[Kartung]], [[the Gambia]]. Characteristically its tongue often pokes out whilst swallowing food. </gallery>
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