Costa Rica · Guanacaste Province
San Gerardo Biological Station
423 species and 40,867 records in eBird up to 2024-12-31.
Best months: March, May and December, with up to 242 species seen regularly.
Seen here in November
Common ChlorospingusChlorospingus flavopectus
Northern Tufted FlycatcherMitrephanes phaeocercus
Slate-throated WhitestartMyioborus miniatus
Grey-breasted Wood WrenHenicorhina leucophrys
Scale-crested Pygmy TyrantLophotriccus pileatus
Red TanagerPiranga flava
Tropical ParulaSetophaga pitiayumi
Chestnut-sided WarblerSetophaga pensylvanica
Wilson's WarblerCardellina pusilla
Azure-hooded JayCyanolyca cucullata
Golden-crowned WarblerBasileuterus culicivorus
Green HermitPhaethornis guy
Golden-winged WarblerVermivora chrysoptera
Black-and-white WarblerMniotilta varia107 species seen regularly here in November · showing the 14 most recorded. All 423 species recorded here ↓
Species seen regularly, by month
Species with 3 or more records in that month, all years combined.
Nearby hotspots
- Curi-Cancha Refugio de Vida Silvestre6 km415 species
- Monteverde7 km414 species
- Stella's Bakery7 km270 species
- Reserva Biológica Bosque Nuboso Monteverde7 km428 species
- El Congal Rainforest7 km396 species
- Sky Adventures - Arenal Park9 km444 species
All 423 species recorded here
- Slate-throated Whitestart Myioborus miniatus
- Grey-breasted Wood Wren Henicorhina leucophrys
- Common Chlorospingus Chlorospingus flavopectus
- Northern Tufted Flycatcher Mitrephanes phaeocercus
- Clay-colored Thrush Turdus grayi
- Silver-throated Tanager Tangara icterocephala
- Scarlet-rumped Tanager Ramphocelus passerinii
- Crested Guan Penelope purpurascens
- Northern Emerald Toucanet Aulacorhynchus prasinus
- Scale-crested Pygmy Tyrant Lophotriccus pileatus
- Azure-hooded Jay Cyanolyca cucullata
- Golden-crowned Warbler Basileuterus culicivorus
- Slaty-backed Nightingale-Thrush Catharus fuscater
- Collared Trogon Trogon collaris
- Green Hermit Phaethornis guy
- Tropical Parula Setophaga pitiayumi
- Lesser Greenlet Pachysylvia decurtata
- Plain Antvireo Dysithamnus mentalis
- White-throated Thrush Turdus assimilis
- Black-faced Solitaire Myadestes melanops
- Spotted Woodcreeper Xiphorhynchus erythropygius
- Coppery-headed Emerald Microchera cupreiceps
- Rufous-tailed Jacamar Galbula ruficauda
- Zeledon's Antbird Hafferia zeledoni
- Spotted Barbtail Premnoplex brunnescens
- Prong-billed Barbet Semnornis frantzii
- Turkey Vulture Cathartes aura
- Golden-olive Woodpecker Colaptes rubiginosus
- Red-headed Barbet Eubucco bourcierii
- Black-headed Antthrush Formicarius nigricapillus
- White-breasted Wood Wren Henicorhina leucosticta
- Red Tanager Piranga flava
- Yellowish Flycatcher Empidonax flavescens
- Montezuma Oropendola Psarocolius montezuma
- Black Guan Chamaepetes unicolor
- Common Squirrel Cuckoo Piaya cayana
- Ochraceous Wren Troglodytes ochraceus
- Black Vulture Coragyps atratus
- Band-backed Wren Campylorhynchus zonatus
- Buff-rumped Warbler Myiothlypis fulvicauda
- Short-billed Pigeon Patagioenas nigrirostris
- Bay-headed Tanager Tangara gyrola
- Chestnut-capped Brushfinch Arremon brunneinucha
- Northern House Wren Troglodytes aedon
- Bananaquit Coereba flaveola
- Olive-streaked Flycatcher Mionectes olivaceus
- White-throated Spadebill Platyrinchus mystaceus
- Slaty Antwren Myrmotherula schisticolor
- Tawny-capped Euphonia Euphonia anneae
- Golden-browed Chlorophonia Chlorophonia callophrys
- Red-billed Pigeon Patagioenas flavirostris
- Sooty-faced Finch Arremon crassirostris
- Broad-billed Motmot Electron platyrhynchum
- Chestnut-sided Warbler Setophaga pensylvanica
- Red-faced Spinetail Cranioleuca erythrops
- Northern Nightingale-Wren Microcerculus philomela
- Brown-hooded Parrot Pyrilia haematotis
- Golden-bellied Flycatcher Myiodynastes hemichrysus
- Buff-throated Saltator Saltator maximus
- Silvery-fronted Tapaculo Scytalopus argentifrons
- Golden-winged Warbler Vermivora chrysoptera
- Wedge-billed Woodcreeper Glyphorynchus spirurus
- White-bellied Mountaingem Lampornis hemileucus
- Crimson-collared Tanager Ramphocelus sanguinolentus
- Black-breasted Wood Quail Odontophorus leucolaemus
- Scarlet-thighed Dacnis Dacnis venusta
- Wilson's Warbler Cardellina pusilla
- Stripe-breasted Wren Cantorchilus thoracicus
- Three-wattled Bellbird Procnias tricarunculatus
- Slaty-capped Flycatcher Leptopogon superciliaris
- Mistletoe Tyrannulet Zimmerius parvus
- Chestnut-headed Oropendola Psarocolius wagleri
- Black-and-white Warbler Mniotilta varia
- Blue-grey Tanager Thraupis episcopus
- Black-eared Warbler Basileuterus melanotis
- Blackburnian Warbler Setophaga fusca
- Black-headed Nightingale-Thrush Catharus mexicanus
- Swallow-tailed Kite Elanoides forficatus
- Black-cheeked Woodpecker Melanerpes pucherani
- Rufous-browed Tyrannulet Phylloscartes superciliaris
- Black Hawk-Eagle Spizaetus tyrannus
- Masked Tityra Tityra semifasciata
- Ornate Hawk-Eagle Spizaetus ornatus
- Brown-billed Scythebill Campylorhamphus pusillus
- Smoky-brown Woodpecker Leuconotopicus fumigatus
- Slaty Spinetail Synallaxis brachyura
- Stripe-throated Hermit Phaethornis striigularis
- Black-throated Green Warbler Setophaga virens
- Variable Seedeater Sporophila corvina
- Mountain Thrush Turdus plebejus
- Great Curassow Crax rubra
- Trilling Gnatwren Ramphocaenus melanurus
- Summer Tanager Piranga rubra
- Eye-ringed Flatbill Rhynchocyclus brevirostris
- Barred Forest Falcon Micrastur ruficollis
- Spangle-cheeked Tanager Tangara dowii
- White-collared Swift Streptoprocne zonaris
- Grey-throated Leaftosser Sclerurus albigularis
- Sharpbill Oxyruncus cristatus
- Fawn-throated Foliage-gleaner Automolus cervinigularis
- Cinnamon Becard Pachyramphus cinnamomeus
- Rufous Mourner Rhytipterna holerythra
- Dusky Antbird Cercomacroides tyrannina
- Olivaceous Woodcreeper Sittasomus griseicapillus
- Ruddy Pigeon Patagioenas subvinacea
- Northern Plain Xenops Xenops mexicanus
- Brown Jay Cyanocorax morio
- Song Wren Cyphorhinus phaeocephalus
- Black-throated Wren Pheugopedius atrogularis
- Lineated Foliage-gleaner Syndactyla subalaris
- Blue-and-gold Tanager Bangsia arcaei
- Stripe-tailed Hummingbird Eupherusa eximia
- Keel-billed Toucan Ramphastos sulfuratus
- Sulphur-bellied Flycatcher Myiodynastes luteiventris
- Pauraque Nyctidromus albicollis
- Scaly-throated Foliage-gleaner Anabacerthia variegaticeps
- Dusky-capped Flycatcher Myiarchus tuberculifer
- Lesson's Motmot Momotus lessonii
- Tropical Kingbird Tyrannus melancholicus
- Purplish-backed Quail-Dove Zentrygon lawrencii
- Black-headed Tody-Flycatcher Todirostrum nigriceps
- Green-crowned Brilliant Heliodoxa jacula
- Yellow-faced Grassquit Tiaris olivaceus
- Broad-winged Hawk Buteo platypterus
- Social Flycatcher Myiozetetes similis
- Pale-vented Thrush Turdus obsoletus
- Bicolored Antbird Gymnopithys bicolor
- Green Honeycreeper Chlorophanes spiza
- Ochre-breasted Antpitta Grallaricula flavirostris
- Crowned Woodnymph Thalurania colombica
- Russet Antshrike Thamnistes anabatinus
- Thicket Antpitta Myrmothera dives
- Purple-throated Mountaingem Lampornis calolaemus
- Ocellated Antbird Phaenostictus mcleannani
- Spotted Antbird Hylophylax naevioides
- Tawny-throated Leaftosser Sclerurus mexicanus
- Melodious Blackbird Dives dives
- Orange-billed Sparrow Arremon aurantiirostris
- Highland Tinamou Nothocercus bonapartei
- Black-thighed Grosbeak Pheucticus tibialis
- Yellow-olive Flatbill Tolmomyias sulphurescens
- Great Kiskadee Pitangus sulphuratus
- Blue-black Grosbeak Cyanoloxia cyanoides
- White Hawk Pseudastur albicollis
- Violet Sabrewing Campylopterus hemileucurus
- Sulphur-rumped Myiobius Myiobius sulphureipygius
- White-ruffed Manakin Corapipo altera
- Band-tailed Pigeon Patagioenas fasciata
- Collared Whitestart Myioborus torquatus
- Red-legged Honeycreeper Cyanerpes cyaneus
- Olive-sided Flycatcher Contopus cooperi
- Streak-breasted Treehunter Thripadectes rufobrunneus
- Piratic Flycatcher Legatus leucophaius
- Eastern Wood Pewee Contopus virens
- Lesser Violetear Colibri cyanotus
- Palm Tanager Thraupis palmarum
- Rufous-breasted Antthrush Formicarius rufipectus
- Yellow-bellied Flycatcher Empidonax flaviventris
- Chiriqui Quail-Dove Zentrygon chiriquensis
- Boat-billed Flycatcher Megarynchus pitangua
- Buff-fronted Quail-Dove Zentrygon costaricensis
- Common Tody-Flycatcher Todirostrum cinereum
- Streak-headed Woodcreeper Lepidocolaptes souleyetii
- Tennessee Warbler Leiothlypis peregrina
- Rufous Motmot Baryphthengus martii
- Mottled Owl Strix virgata
- Groove-billed Ani Crotophaga sulcirostris
- Western Wood Pewee Contopus sordidulus
- Swainson's Thrush Catharus ustulatus
- Purple-crowned Fairy Heliothryx barroti
- Baltimore Oriole Icterus galbula
- Finsch's Parakeet Psittacara finschi
- Resplendent Quetzal Pharomachrus mocinno
- Olive-crowned Yellowthroat Geothlypis semiflava
- Yellow-throated Euphonia Euphonia hirundinacea
- Costa Rican Pygmy Owl Glaucidium costaricanum
- Northern Tropical Pewee Contopus bogotensis
- Mountain Elaenia Elaenia frantzii
- Spectacled Owl Pulsatrix perspicillata
- Brown Violetear Colibri delphinae
- Yellow-crowned Euphonia Euphonia luteicapilla
- Violet-headed Hummingbird Klais guimeti
- Barred Hawk Morphnarchus princeps
- Ruddy Treerunner Margarornis rubiginosus
- Blue-and-white Swallow Pygochelidon cyanoleuca
- Yellow-throated Vireo Vireo flavifrons
- Vaux's Swift Chaetura vauxi
- Orange-billed Nightingale-Thrush Catharus aurantiirostris
- White-naped Brushfinch Atlapetes albinucha
- Short-tailed Hawk Buteo brachyurus
- King Vulture Sarcoramphus papa
- Grey-crowned Yellowthroat Geothlypis poliocephala
- Bare-necked Umbrellabird Cephalopterus glabricollis
- Carmiol's Tanager Chlorothraupis carmioli
- Louisiana Waterthrush Parkesia motacilla
- Bright-rumped Attila Attila spadiceus
- Double-toothed Kite Harpagus bidentatus
- Black-striped Sparrow Arremonops conirostris
- Great Black Hawk Buteogallus urubitinga
- Wood Thrush Hylocichla mustelina
- Rufous-collared Sparrow Zonotrichia capensis
- Grey-chested Dove Leptotila cassinii
- Bat Falcon Falco rufigularis
- Red-eyed Vireo Vireo olivaceus
- Northern Barred Woodcreeper Dendrocolaptes sanctithomae
- Yellow-throated Toucan Ramphastos ambiguus
- Canada Warbler Cardellina canadensis
- White-tipped Dove Leptotila verreauxi
- Black-and-yellow Tanager Chrysothlypis chrysomelas
- Ruddy-capped Nightingale-Thrush Catharus frantzii
- White-throated Crake Laterallus albigularis
- Grey Hawk Buteo plagiatus
- Dull-mantled Antbird Sipia laemosticta
- Emerald Tanager Tangara florida
- Scaled Antpitta Grallaria guatimalensis
- Collared Forest Falcon Micrastur semitorquatus
- Northern Waterthrush Parkesia noveboracensis
- Barred Becard Pachyramphus versicolor
- Bay Wren Cantorchilus nigricapillus
- White-throated Shrike-Tanager Lanio leucothorax
- Barred Parakeet Bolborhynchus lineola
- White-fronted Amazon Amazona albifrons
- Red-lored Amazon Amazona autumnalis
- Orange-chinned Parakeet Brotogeris jugularis
- Cabanis's Wren Cantorchilus modestus
- Bronzed Cowbird Molothrus aeneus
- Shiny Cowbird Molothrus bonariensis
- Golden-hooded Tanager Stilpnia larvata
- Torrent Tyrannulet Serpophaga cinerea
- Buff-fronted Foliage-gleaner Dendroma rufa
- Rufous-tailed Hummingbird Amazilia tzacatl
- Cocoa Woodcreeper Xiphorhynchus susurrans
- Philadelphia Vireo Vireo philadelphicus
- Hoffmann's Woodpecker Melanerpes hoffmannii
- Magenta-throated Woodstar Philodice bryantae
- Great-tailed Grackle Quiscalus mexicanus
- Pale-billed Woodpecker Campephilus guatemalensis
- Blue Dacnis Dacnis cayana
- Tawny-faced Gnatwren Microbates cinereiventris
- Rufous-and-white Wren Thryophilus rufalbus
- White-crowned Parrot Pionus senilis
- Red-fronted Parrotlet Touit costaricensis
- Chestnut-capped Warbler Basileuterus delattrii
- Cerulean Warbler Setophaga cerulea
- Rose-breasted Grosbeak Pheucticus ludovicianus
- Grey-headed Chachalaca Ortalis cinereiceps
- Tiny Hawk Microspizias superciliosus
- Cinnamon-bellied Saltator Saltator grandis
- Townsend's Warbler Setophaga townsendi
- Western Woodhaunter Automolus virgatus
- Green-fronted Lancebill Doryfera ludovicae
- White-eared Ground Sparrow Melozone leucotis
- Bare-shanked Screech Owl Megascops clarkii
- Canivet's Emerald Cynanthus canivetii
- Dark Pewee Contopus lugubris
- Ochre-bellied Flycatcher Mionectes oleagineus
- Chestnut-collared Swift Streptoprocne rutila
- Elegant Euphonia Chlorophonia elegantissima
- Scarlet Tanager Piranga olivacea
- Rufous-winged Woodpecker Piculus simplex
- Mangrove Warbler Setophaga petechia
- Lanceolated Monklet Micromonacha lanceolata
- Blue-vented Hummingbird Saucerottia hoffmanni
- Lovely Cotinga Cotinga amabilis
- Laughing Falcon Herpetotheres cachinnans
- Peregrine Falcon Falco peregrinus
- Long-billed Hermit Phaethornis longirostris
- Least Flycatcher Empidonax minimus
- Northern Rough-winged Swallow Stelgidopteryx serripennis
- Rufous Piha Lipaugus unirufus
- Little Long-tailed Woodcreeper Deconychura typica
- Grey-cowled Wood Rail Aramides cajaneus
- Blue-throated Sapphire Chlorestes eliciae
- Kentucky Warbler Geothlypis formosa
- Giant Cowbird Molothrus oryzivorus
- Blue-black Grassquit Volatinia jacarina
- Northern Schiffornis Schiffornis veraepacis
- Swainson's Hawk Buteo swainsoni
- White-ringed Flycatcher Conopias albovittatus
- Rufous-browed Peppershrike Cyclarhis gujanensis
- Bicolored Hawk Astur bicolor
- Slaty Flowerpiercer Diglossa plumbea
- Slaty-headed Tody-Flycatcher Poecilotriccus sylvia
- Keel-billed Motmot Electron carinatum
- Long-tailed Manakin Chiroxiphia linearis
- Slate-colored Grosbeak Saltator grossus
- Yellow-thighed Brushfinch Atlapetes tibialis
- Ruby-throated Hummingbird Archilochus colubris
- Olive-backed Euphonia Euphonia gouldi
- Black-crowned Tityra Tityra inquisitor
- Zone-tailed Hawk Buteo albonotatus
- Yellow-bellied Elaenia Elaenia flavogaster
- Barred Antshrike Thamnophilus doliatus
- Red-tailed Hawk Buteo jamaicensis
- Green Thorntail Discosura conversii
- Great Tinamou Tinamus major
- Hairy Woodpecker Leuconotopicus villosus
- Chestnut-backed Antbird Poliocrania exsul
- American Dipper Cinclus mexicanus
- Thick-billed Seed Finch Sporophila funerea
- Yellow Tyrannulet Capsiempis flaveola
- Black-crested Coquette Lophornis helenae
- Scintillant Hummingbird Selasphorus scintilla
- Sooty-capped Chlorospingus Chlorospingus pileatus
- American Black Swift Cypseloides niger
- Northern Bentbill Oncostoma cinereigulare
- Buffy Tuftedcheek Pseudocolaptes lawrencii
- Acadian Flycatcher Empidonax virescens
- Worm-eating Warbler Helmitheros vermivorum
- Ruddy Quail-Dove Geotrygon montana
- Hook-billed Kite Chondrohierax uncinatus
- Black-faced Antthrush Formicarius analis
- Black-cowled Oriole Icterus prosthemelas
- Ruddy Woodcreeper Dendrocincla homochroa
- Speckled Tanager Ixothraupis guttata
- Yellow-bellied Sapsucker Sphyrapicus varius
- Gartered Trogon Trogon caligatus
- White-fronted Tyrannulet Acrochordopus zeledoni
- Black Phoebe Sayornis nigricans
- Grey-rumped Swift Chaetura cinereiventris
- Great Crested Flycatcher Myiarchus crinitus
- Tropical Gnatcatcher Polioptila plumbea
- Bay-breasted Warbler Setophaga castanea
- Western Kingbird Tyrannus verticalis
- Scarlet-rumped Cacique Cacicus uropygialis
- Rose-throated Becard Pachyramphus aglaiae
- Scaly-throated Leaftosser Sclerurus guatemalensis
- Streaked Flycatcher Myiodynastes maculatus
- Yellow-eared Toucanet Selenidera spectabilis
- Black-headed Saltator Saltator atriceps
- Chuck-will's-widow Antrostomus carolinensis
- Plain-brown Woodcreeper Dendrocincla fuliginosa
- Inca Dove Columbina inca
- Yellow-winged Flatbill Tolmomyias flavotectus
- White-vented Euphonia Euphonia minuta
- Roadside Hawk Rupornis magnirostris
- White-throated Magpie-Jay Cyanocorax formosus
- Little Tinamou Crypturellus soui
- Mealy Amazon Amazona farinosa
- Collared Aracari Pteroglossus torquatus
- Southern Rough-winged Swallow Stelgidopteryx ruficollis
- Magnificent Frigatebird Fregata magnificens
- White-necked Jacobin Florisuga mellivora
- Mourning Warbler Geothlypis philadelphia
- Sharp-shinned Hawk Accipiter striatus
- Bare-throated Tiger Heron Tigrisoma mexicanum
- White-tipped Sicklebill Eutoxeres aquila
- Ovenbird Seiurus aurocapilla
- Crested Owl Lophostrix cristata
- Grey-capped Flycatcher Myiozetetes granadensis
- Common Black Hawk Buteogallus anthracinus
- Rock Dove Columba livia
- White-lored Gnatcatcher Polioptila albiloris
- Rufous-backed Wren Campylorhynchus capistratus
- Morelet's Seedeater Sporophila morelleti
- Orange-fronted Parakeet Eupsittula canicularis
- Checker-throated Stipplethroat Epinecrophylla fulviventris
- Western Cattle Egret Ardea ibis
- Lesser Goldfinch Spinus psaltria
- Black-and-yellow Phainoptila Phainoptila melanoxantha
- Rufous-breasted Wren Pheugopedius rutilus
- Yellow-throated Warbler Setophaga dominica
- White-lined Tanager Tachyphonus rufus
- Sepia-capped Flycatcher Leptopogon amaurocephalus
- Barn Swallow Hirundo rustica
- Snowcap Microchera albocoronata
- Ruddy-tailed Flycatcher Terenotriccus erythrurus
- Lattice-tailed Trogon Trogon clathratus
- White-winged Dove Zenaida asiatica
- Crested Caracara Caracara plancus
- Black-faced Grosbeak Caryothraustes poliogaster
- Banded Wren Thryophilus pleurostictus
- Russet-naped Wood Rail Aramides albiventris
- Short-tailed Nighthawk Lurocalis semitorquatus
- Talamanca Hummingbird Eugenes spectabilis
- Yellow-green Vireo Vireo flavoviridis
- Bronze-tailed Plumeleteer Chalybura urochrysia
- Pale-vented Pigeon Patagioenas cayennensis
- Sunbittern Eurypyga helias
- Black-and-white Owl Strix nigrolineata
- Black-throated Blue Warbler Setophaga caerulescens
- Streak-chested Antpitta Hylopezus perspicillatus
- Stripe-headed Sparrow Peucaea ruficauda
- Dusky Nightjar Antrostomus saturatus
- Grey Catbird Dumetella carolinensis
- Common Potoo Nyctibius griseus
- Blue Grosbeak Passerina caerulea
- American Cliff Swallow Petrochelidon pyrrhonota
- Semiplumbeous Hawk Leucopternis semiplumbeus
- Grey-breasted Martin Progne chalybea
- Lineated Woodpecker Dryocopus lineatus
- White-tailed Kite Elanus leucurus
- Violaceous Quail-Dove Geotrygon violacea
- Grey-headed Dove Leptotila plumbeiceps
- Dot-winged Antwren Microrhopias quixensis
- Prothonotary Warbler Protonotaria citrea
- Middle American Screech Owl Megascops guatemalae
- Thicket Tinamou Crypturellus cinnamomeus
- White-collared Manakin Manacus candei
- White-fronted Nunbird Monasa morphoeus
- Green-breasted Mango Anthracothorax prevostii
- Turquoise-browed Motmot Eumomota superciliosa
- Ruddy Ground Dove Columbina talpacoti
- Wrenthrush Zeledonia coronata
- Grey-headed Tanager Eucometis penicillata
- Streak-crowned Antvireo Dysithamnus striaticeps
- Eastern Meadowlark Sturnella magna
- Green Heron Butorides virescens
- Scrub Euphonia Euphonia affinis
- American Redstart Setophaga ruticilla
- White-shouldered Tanager Loriotus luctuosus
- American Kestrel Falco sparverius
- Ruddy-breasted Seedeater Sporophila minuta
- Eastern Kingbird Tyrannus tyrannus
- Strong-billed Woodcreeper Xiphocolaptes promeropirhynchus
- Great Blue Heron Ardea herodias
- Fiery-throated Hummingbird Panterpe insignis
- Lesser Swallow-tailed Swift Panyptila cayennensis
- Blue-winged Warbler Vermivora cyanoptera
- Common Yellowthroat Geothlypis trichas
- Bare-crowned Antbird Gymnocichla nudiceps
- Blue-headed Vireo Vireo solitarius
- White-chinned Swift Cypseloides cryptus
Most recorded first. Species we protect from disturbance aren't listed.
Questions
When is the best time to go birding at San Gerardo Biological Station?
March, May and December. That's when the most species are seen regularly here, up to 242 in a month.
How many bird species have been seen at San Gerardo Biological Station?
423 species, from 40,867 eBird records up to 2024-12-31.
What birds can I see at San Gerardo Biological Station in November?
The most recorded in November: Common Chlorospingus, Northern Tufted Flycatcher, Slate-throated Whitestart, Grey-breasted Wood Wren and Scale-crested Pygmy Tyrant.
eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.