Study_Type cleaning

[ahhurlbert]

table(diet$Study_Type) will show the frequency of all phrases in this field.

We need to clean this field up and use consistent terminology. Multiple types may be specified by separating with a ";", but the types themselves should be constrained to the following options:

• behavioral observation (not "observed", "observation", "observational", "direct observation", "field observation", "nest observation", "observatioin of prey", etc)
• crop contents (not "crop")
• emetic
• esophagus contents (not "esophogeal contents", "esophagi", "throat contents", "nestling throat contents", "gullet contents", "throat collar", "nestling throat collar", etc)
• fecal contents (not "fecal examination")
• nest debris (not "nest contents"
• pellet contents (not "castings", "pellet analysis", "pellets", "fecal pellet analysis", etc)
• prey remains (not "remains analysis")
• stomach contents (not "nestling stomach contents", "gizzard contents", "gizzard analysis", "stomach", etc)

Phrases to delete: "tagged" "estimation"

Note that there are 18 records with no Study_Type value and 63 records with NA, so we need to look those up and fill in.

[pwinner1]

finished cleaning Study_Type