Tringa semipalmata

Photo Credit: Mdf via Wikimedia Commons
Tringa semipalmata
Common Name: willet
Other Common Names: chevalier semipalmé
Other Scientific Names: Catoptrophorus semipalmatus
Animal Guild: Bird
Class > Order > Family: Aves > Charadriiformes > Scolopacidae
Where is the species found?
States & Provinces
AB, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MB, MD, ME, MI, MN, MO, MS, MT, NB, NC, ND, NE, NH, NJ, NL, NM, NS, NV, NY, OH, OK, ON, OR, PA, PE, QC, RI, SC, SD, SK, TN, TX, UT, VA, WA, WI, WY
Which phenophases should I observe?
Do you see/hear...?
Activity Live individuals
One or more individuals are seen or heard moving about or at rest.
More...

For abundance, enter the number of individual animals observed in this phenophase.
Feeding
One or more individuals are seen feeding or foraging. If possible, record the name of the species or substance being eaten or describe it in the comments field.

For abundance, enter the number of individual animals observed in this phenophase.
Calls or song
One or more individuals are heard calling or singing.

For abundance, enter the number of individual animals observed in this phenophase.
Singing individuals
One or more individuals are heard singing. Singing refers to stereotypical, simple or elaborate vocalizations (most commonly by males) used as part of territorial proclamation or defense, or mate attraction. It does not include relatively simple calls used for other forms of communication.

For abundance, enter the number of individual animals observed in this phenophase.
Territorial individuals
One or more individuals are seen or heard defending a territory. This may be indicated by calls or song used as part of a territorial proclamation, chasing of an individual of the same species from a breeding area (but do not confuse this with courtship behavior, which in some species may involve chasing), or calls or displays directed at individuals of the same or a different species to defend a feeding area.

For abundance, enter the number of individual animals observed in this phenophase.
Reproduction Courtship
A male and female are seen near one another and are engaged in courtship behavior. Do not include male displays in the absence of a female.

For abundance, enter the number of individual animals observed in this phenophase.
Mating
A male and female are seen coupled in a mating position, usually with the male on top of the female.

For abundance, enter the number of individual animals observed in this phenophase.
Nest building
One or more adults are seen constructing a nest or carrying nesting material.

For abundance, enter the number of individual animals observed in this phenophase.
Occupied nest
One or more adults are seen sitting on a nest, entering or leaving a nest site under circumstances indicating its use for nesting (including nest defense behavior), or live eggs or nestlings are seen in a nest.

For abundance, enter the number of individual animals observed in this phenophase.
Development Downy young
One or more young are seen covered with fluffy down feathers and not yet any smooth contour feathers.

For abundance, enter the number of individual animals observed in this phenophase.
Partially-fledged young
One or more young are seen with a mix of fluffy down and smooth contour feathers, and often have an unkempt or ragged appearance.

For abundance, enter the number of individual animals observed in this phenophase.
Fledged young
One or more young are seen covered with smooth contour feathers and no longer any fluffy, natal down feathers. This includes young incapable of sustained flight and young which are still dependent on adults.

For abundance, enter the number of individual animals observed in this phenophase.
Dead individuals
One or more dead individuals are seen.

For abundance, enter the number of individual animals observed in this phenophase.
Dead nestlings or fledglings
One ore more dead nestlings or young are seen.

For abundance, enter the number of individual animals observed in this phenophase.
Method Individuals at a feeding station
One or more individuals are seen visiting a feeder, feeding station, or food placed by a person.

For abundance, enter the number of individual animals observed in this phenophase.
What do these phenophases look like?

There is currently no photoguide available for this species. If you'd like help us create one, use the guidance document and species template provided here. Then send it via email to education@usanpn.org when it is complete.

ITIS information for willet (ITIS TSN: 824147 )