complete search for Parulidae diet data

[ahhurlbert]

The following species in Parulidae are missing from the NA_avian_diet_refs.txt file and therefore may never have been intentionally searched:

Golden-winged warbler Black-throated gray warbler Yellow-throated warbler Northern Parula Tropical Parula Ovenbird Louisiana waterthrush Connecticut warbler Mourning warbler Canada warbler

For each of the above species, 1) go to https://birdsoftheworld.org/bow/home (subscription only, so you'll need to be connected to UNC's VPN), and visit the species' Diet and Foraging page.
2) Look up each of the references cited on that page, and add them to the NA_avian_diet_refs.txt and indicate whether they do or do not have any quantitative diet data. Pay attention to whether any studies are cited within those papers that might potentially contain such data.
3) On Google Scholar, put the following search terms in quotes: "[common name] AND (diet OR foraging OR food)", for example "golden-winged warbler AND (diet OR foraging OR food)". Follow up with any papers that have titles indicating they might contain quantitative data. Add all papers examined to the NA_avian_diet_refs.txt file regardless of whether they have data. 4) For species above with an *, some diet data exists currently in our Avian Diet Database. Be sure to check that any papers you find in your literature search are not already entered.

[ahhurlbert]

Note that "golden-winged warbler" has actually been listed as its own issue, so ignore that species here. Update in this issues thread as you finish searching a species on the list above.

[mms726]

Finished:

• Black-throated Gray Warbler
• Yellow-throated Warbler
• Northern Parula
• Tropical Parula
• Ovenbird
• Louisiana Waterthrush
• Connecticut Warbler
• Mourning Warbler
• Canada Warbler