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lat

yes

-90.00 - 90.00 decimal

42.46

decimal latitude, two decimal places of precision required

lng

yes

-180.00 - 180.00 decimal

-76.51

decimal longitude, two decimal places of precision required

dist

25

0 - 50 integer

15

distance defining area of interest from given lat/lng in kilometers

back

14

1 - 30 integer

7

the number of days back to look for observations

maxResults

1 - 10000 integer

10

the maximum number of result rows to return in this request; to get all results do not include this parameter

locale

en_US

Java standard locale codes

fr_CA

Language/locale of response (when translations are available). See http://java.sun.com/javase/6/docs/api/java/util/Locale.html.

fmt

xml

json, xml

json

format of the response

sci

yes

any scientific name

larus%20delawarensis

scientific name of the species of interest (not case sensitive).  This only accepts scientific names of the category "species" and will generate an "unknown species" error for names in any other category.  See eBird-1.1-SpeciesReference for a list of supported scientific names and a complete list of categories.

hotspot

false

true,false

false

set to true if results should be limited to sightings at hotspots

includeProvisional

false

true,false

false

set to true if you'd like flagged records that have not yet been reviewed to be included in the results