Related by context. Frequent words. (Click for all words.) 55 ecoregions 54 overharvested 53 larval stages 53 wintering waterfowl 53 coniferous forests 53 bog turtles 53 migrating songbirds 53 habitats 53 nesting habitats 52 endemic species 52 Migrating birds 52 refugia 52 Sea otters 52 Barn owls 52 reedbeds 52 temperate forests 51 overwintered 51 deciduous forests 51 aquatic invertebrates 51 aphid populations 51 upland habitat 50 seagrass meadows 50 heavily vegetated 50 migrating waterfowl 50 pine martens 50 migratory bird populations 50 foraging habitat 50 translocated 50 Coral reef 50 riparian zones 50 revegetated 49 migrating shorebirds 49 montane 49 inter tidal 49 species 49 avian species 49 migratory paths 49 frogs salamanders 49 Migratory birds 49 Invasive plants 49 temperate zones 48 mammals reptiles 48 elephants giraffes 48 wintering birds 48 habitat 48 goshawks 48 lowland forest 48 reptiles amphibians 48 amphipods 48 huntable 48 fir forests 48 grassland birds 48 leopard frogs 48 migratory shorebirds 48 hawksbill turtles 47 Greater Yellowstone Ecosystem 47 forested wetlands 47 forbs 47 tunicates 47 wetland ecosystem 47 eelgrass beds 47 shelterbelts 47 tiger salamanders 47 coral ecosystems 47 wildlife corridors 47 grassland habitat 47 migrating ducks 47 Scientific Interest SSSI 47 freshwater habitats 47 subalpine 47 population densities 47 native flora 47 voracious predators 47 waterbird 47 aquatic habitats 47 pronghorns 47 sage grouse populations 47 red cockaded woodpeckers 47 overwinter 47 killifish 47 pheasant populations 46 murrelets 46 insect populations 46 bobwhites 46 biting midges 46 saltmarsh 46 temperate regions 46 echidnas 46 epiphytes 46 riparian vegetation 46 yellow legged frogs 46 native pollinators 46 insect eaters 46 Scientists theorize 46 seagrasses 46 endemism 46 lowland forests 46 biodiversity hotspot 46 larvae hatch 46 conifer forests 46 Yellowstone ecosystem