Animals: Present, but usually seen only a few times each year.Plants: Few to moderate numbers of individuals occurring either sporadically in commonly encountered habitats or in uncommon habitats.Animals: Likely to be seen monthly in appropriate habitat and season.Plants: Large numbers of individuals predictably occurring in commonly encountered habitats but not those covering a large portion of the park.Animals: May be seen daily, in suitable habitat and season, but not in large numbers.Plants: Large number of individuals wide ecological amplitude or occurring in habitats covering a large portion of the park.Animals: May be seen daily, in suitable habitat and season, and counted in relatively large numbers.Assigned based on judgment as opposed to determination based on age of the most recent evidence. Historical: Species' historical occurrence in park is documented. Not In Park: Species is not known to occur in park.Īdjacent: Species is known to occur in areas near to or contiguous with park boundaries.įalse Report: Species was reported to occur within the park, but current evidence indicates the report was based on misidentification, a taxonomic concept no longer accepted, or other similar problem of error or interpretation. Unconfirmed: Species is attributed to park but evidence is weak or absent.
Probably Present: High confidence species occurs in park but current, verified evidence needed. Present: Species occurs in park current, reliable evidence available. One or more Occurrence Tags may be associated with each Occurrence value. The park also assesses the quality of their habitat and works with partners to restore, connect, and expand natural areas while preventing or supressing invasive species. The National Park Service routinely conducts studies to monitor and evaluate animal populations. Otters, coyotes, deer, beaver and muskrats and other mammals live along the river's banks. More than 120 species of fish make their home in the river, along with recovering mussel populations. Many species of birds summer here with many more species using the river and its forests and grasslands as stopovers during their epic migrations. The Mississippi and the surrounding bluffs and floodplains provide food and shelter for migrating birds, unique fish, and remarkable mammals. The land, water, and sky of the upper Mississippi River are teaming with life. The chick is replaced into its nest sporting a new leg band for future identification. Feather and blood samples are taken and analyzed for contaminants. Researchers work with a bald eagle chick.
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