Costa Rica - Hawks (1 Viewer)

[PW23]

Hello,

I visited Costa Rica in March 2019. Enthusiastically photographing every distant soaring dot, I've got some pretty ropey hawk images I'd really appreciate some help with identifying.

Thanks!

 

[birdmeister]

Here's my stab at things, I guess Gray-lined Hawk is ruled out on range?

1. Gray Hawk adult
2. Short-tailed Hawk
3. Broad-winged Hawk immature
4. Broad-winged Hawk adult
5. Gray Hawk immature

 

[njlarsen]

Gray lined Hawk is the expected form in half of CR. Precise location might help.

Niels

 

[PW23]

Thanks Birdmeister. Good point Niels, closest major towns listed. Thanks

1) La Fortuna
2) La Fortuna
3) Uvita
4) La Fortuna
5) La Fortuna

 

[JWN Andrewes]

Wow, five neotropical raptor flight shot IDs and none is a Roadside! I'm impressed!

 

[PW23]

Thanks JWN! I have plenty of Roadsides, Common Black and White too, I just found them much easier to identify.

 

[THE_FERN]

Hello,

I visited Costa Rica in March 2019. Enthusiastically photographing every distant soaring dot, I've got some pretty ropey hawk images I'd really appreciate some help with identifying.

Thanks!

I think shots 3 and 5 well illustrate the differences in (especially) undertail pattern. If you're amenable, perhaps add to opus?

 

[PW23]

Thanks The Fern, I am amenable. If Birdmeister and Niels are happy with the IDs now I've added location info that is.

I've not used Opus before, can I add them myself?

 

[njlarsen]

There is an id feature for the two here: https://ebird.org/camerica/news/was-that-a-gray-hawk-or-a-gray-lined-hawk-i-just-saw/?lang=en
Maps of known ranges here: https://ebird.org/camerica/map/gryh...&gp=false&ev=Z&mr=1-12&bmo=1&emo=12&yr=last10
https://ebird.org/camerica/map/gryh...1-12&bmo=1&emo=12&yr=last10&byr=2010&eyr=2020

Niels

 

[PW23]

Very helpful, thanks Niels!

 

[THE_FERN]

There is an id feature for the two here: https://ebird.org/camerica/news/was-that-a-gray-hawk-or-a-gray-lined-hawk-i-just-saw/?lang=en
Maps of known ranges here: https://ebird.org/camerica/map/gryh...&gp=false&ev=Z&mr=1-12&bmo=1&emo=12&yr=last10
https://ebird.org/camerica/map/gryh...1-12&bmo=1&emo=12&yr=last10&byr=2010&eyr=2020

Niels

Hi Niels

Yeah I was aware of that [could usefully add link to it to Opus if not already there]. my comment was really about broad-winged vs grey [/grey-lined]. Think point is field guides not always great at showing tail pattern which is clearly different here [with marked terminal band] / wing shape differences.

 

[THE_FERN]

Gray lined Hawk is the expected form in half of CR. Precise location might help.

Niels

Ebird/ Vallely & Dyer suggests only eastern bit, and if latter to be believed not esp. widespread there. Think grey hawk should be safe bet in La Fortuna

 

[PW23]

Thanks The Fern!

 

[njlarsen]

Ebird has lots of observations west to about la Carara. West of there, including Fortuna (now that we know where it was from) it’s gray hawk.Still , we really should make sure the maps are correct by actual Id of the bird. The distance is probably less than six hours of flight.

Niels