Related by context. Frequent words. (Click for all words.) 77 nesting pairs 58 bird species 58 wolf populations 58 species 57 captive breeding 56 wolf packs 56 peregrines 56 wolves 55 plovers 55 lynx 55 bald eagles 54 otters 54 critically endangered species 54 gray wolves 54 subspecies 53 scaup 52 rhinos 52 endangered species 51 grizzly bears 51 barn owls 51 habitat 51 trumpeter swans 51 plover 51 gray wolf 51 critically endangered 51 captive bred 50 California condors 50 gray squirrels 50 bobcats 50 frog species 50 USFWS 50 whooping cranes 49 golden eagles 49 terns 49 eaglets 49 grizzlies 49 peregrine falcons 49 Siberian tigers 49 sea otters 49 otter 49 foxes 49 amphibian species 49 wolverines 49 Sumatran tigers 48 puffins 48 rookery 48 nesting 48 white tailed deer 48 elk herds 48 ospreys 48 leatherbacks 48 mountain lions 48 peregrine 48 birds 48 elk herd 47 genetically distinct 47 wintering 47 Bald eagles 47 pheasants 47 bluebirds 47 mammal species 47 wild turkeys 47 osprey 47 seabirds 47 habitats 46 whooping crane 46 condors 46 cougars 46 cormorants 46 breeding herd 46 bighorns 46 wading birds 46 sage grouse 46 mallards 46 bison 46 swans 46 harp seals 46 deer herd 46 refuges 46 mallard 46 biologists 45 nests 45 spotted owls 45 Wildlife biologists 45 deer herds 45 koalas 45 jaguars 45 fledglings 45 elk 45 mountain gorillas 45 herds 45 rhino 45 populations 45 shorebird 45 genetic diversity 45 quail 45 gray squirrel 45 hedgehogs 44 turtles 44 panthers 44 bee colonies