río embudo birds

Species observed only during Spring and/or Fall migration. In spring they are migrating to their breeding grounds. In Fall they are returning to their wintering grounds. They do not breed locally.

Number of species: 44

Observations limited to the Dixon Christmas Bird Count Circle, a 15 mile diameter circle centered on Arroyo la Mina in Dixon. See Satellite Map of Count Circle

Abundance classes:
Common: Certain to be seen in suitable habitat and proper season.
Less Common: Present and seen regularly, in suitable habitat and proper season.
Uncommon: Present (and seen regularly), but not certain to be seen even in suitable habitat and proper season.
Rare: Unusual, seen only every 2 to 5 years.
Vagrant : Seeing these birds is highly unusual. They are generally out of their normal range.

All species listed have been observed on at least one occasion.

English NameGenus speciesAbundance
American White PelicanPelecanus erythrorhynchosRare Transient
Double-crested CormorantPhalacrocorax auritusRare Transient
Great EgretArdea albaRare Transient
Snowy EgretEgretta thulaRare Transient
Green HeronButorides virescensRare Transient
White-faced IbisPlegadis chihiRare Transient
OspreyPandion haliaetusUncommon Transient
Swainson's HawkButeo swainsoniRare Transient
Sandhill CraneGrus canadensisUncommon Transient
Black-necked StiltHimantopus mexicanusRare Transient
American AvocetRecurvirostra americanaRare Transient
Solitary SandpiperTringa solitariaUncommon Transient
WilletCatoptrophorus semipalmatusUncommon Transient
Common PoorwillPhalaenoptilus nuttalliiRare Transient
White-throated SwiftAeronautes saxatalisLess Common Transient
Calliope HummingbirdStellula calliopeLess Common Transient
Rufous HummingbirdSelasphorus rufusCommon Transient
Williamson's SapsuckerSphyrapicus thyroideusRare Transient
Red-naped SapsuckerSphyrapicus nuchalisUncommon Transient
Olive-sided FlycatcherContopus cooperiLess Common Transient
Willow FlycatcherEmpidonax trailliiRare Transient
Unidentified Empidonax FlycatcherEmpidonax (sp)Uncommon Transient
Tree SwallowTachycineta bicolorUncommon Transient
Violet-green SwallowTachycineta thalassinaCommon Transient
Swainson's ThrushCatharus ustulatusRare Transient
Gray CatbirdDumetella carolinensisUncommon Transient
Sage ThrasherOreoscoptes montanusRare Transient
American PipitAnthus rubescensRare Transient
Yellow-rumped WarblerDendroica coronataCommon Transient
Townsend's WarblerDendroica townsendiRare Transient
Northern WaterthrushSeiurus noveboracensisRare Transient
MacGillivray's WarblerOporornis tolmieiLess Common Transient
Common YellowthroatGeothlypis trichasUncommon Transient
Wilson's WarblerWilsonia pusillaCommon Transient
Western TanagerPiranga ludovicianaCommon Transient
Green-tailed TowheePipilo chlorurusLess Common Transient
Brewer's SparrowSpizella breweriUncommon Transient
Vesper SparrowPooecetes gramineusUncommon Transient
Lark SparrowChondestes grammacusLess Common Transient
Lark BuntingCalamospiza melanocorysLess Common Transient
Savannah SparrowPasserculus sandwichensisRare Transient
Lincoln's SparrowMelospiza lincolniiUncommon Transient
Rose-breasted GrosbeakPheucticus ludovicianusUncommon Transient
Yellow-headed BlackbirdXanthocephalus xanthocephalusUncommon Transient