[add'l birds from Mindo, Ecuador]

Looks like a Sparkling Violetear.  Flycatcher might be a Wood-Pewee?

[ID help--birds from Mindo, Ecuador]

Yellow-bellied Seedeater

Female tanager, pretty sure it's a White-lined Tanager

Black Phoebe

[bird from Guanacaste province, Costa Rica]

Agree with Squirrel Cuckoo.

[Costa Rica Hummingbird]

Talamanca Hummingbird is a relatively common bird at Poas.  I'm sure you see that it is not flagged in eBird as rare, whereas Rivoli's shouldn't even be listed as a rare option.

[Costa Rica Hummingbird]

I believe it is a Talamanca Hummingbird (previously known as Magnificent Hummingbird).

[What type of flycather]

Doesn't look like a Hammond's too me.  PP too short.

Would like to see more photos with different views of the head and bill before trying to decide between Gray and Dusky.  If you noticed tail movement it would be diagnostic...

[Help ID bird]

Agree with Orange-crowned

[Arizona Birds]

Both hummingbirds are Costa's.  Agree with Say's Phoebe and Hermit Thrush.

[Unknown bird on artwork]

Any clues on the envelope that would point to a certain part of the world?  I would agree that the overall shape and pattern is like a European Robin.  Colors are certainly wrong, but a lot of bird artwork often takes extensive artistic license on actual birds, or just completely creates an original bird.

[Help With Hummers Of Costa Rica]

4 hours ago, Aveschapines said:

Well, if I saw that last one (#7) here I'd call it a Violet Sabrewing, especially if Monte Verde isn't a misnomer and you were at a fairly high elevation in a cloud forest environment, and #3 gives me a Mango vibe. But I have enough trouble with Guatemalan hummers, and not familiar with the Costa Rican ones!

#1,2 - I believe both Green-crowned Brilliant

#3 - Doesn't look like a Mango to me.  Not sure the photo is good enough to ID with confidence, but it may be a Stripe-tailed Hummingbird

#4 - Stripe-tailed Hummingbird

#5 - Green-crowned Brilliant and Stripe-tailed Hummingbird

#6 - Green-crowned Brilliant

#7 - Undoubtedly a Violet Sabrewing

[Help ID bluebird]

18 hours ago, Debbie said:

So many bluebirds to choose from. Photographed this little bb On my northern calif ranch, this afternoon at around 2:30pm under a tree they were eating the berries near the creek. 

 

17 hours ago, The Bird Nuts said:

Western Bluebird is the only bluebird with a deep orange breast that is expected in California.  But the blue throat and dark belly rules out a vagrant Eastern.

 

Eastern Bluebird has never been recorded in California, but it is certainly on our short list for next first state record (especially with Oregon just getting their first state record).  

[Purple Finch]

Agree with House Finch.

[sparrows/finches in california]

That's a Brown-headed Cowbird, not a Purple Finch.

[Confirm Long-tailed Mockingbird]

Agree with Long-tailed Mockingbird

[Vancouver Island Seabird]

5 hours ago, hbvol50 said:

common murre, I believe

Nope.  This is a Marbled Murrelet.

[small owl in virginia]

Eastern Screech-Owl

[Ocean Divers]

I suspect it is a young male Black Scoter because of the yellowish knob on the bill.

[Two unknown Trinidad hummingbirds]

Did you get to see male Tufted Coquettes?  I'd love to see one of those.

[Two unknown Trinidad hummingbirds]

First is mostly a guess for Copper-rumped Hummingbird.

Second I'm pretty sure is a female type Tufted Coquette.

[Tobago unknown flycatcher]

Any other photos?  Looks like a Myiarchus, but I don't think I can tell which one it is from the photo.  Per eBird range maps, Dusky-capped is only on Trinidad and not Tobago. Venezuelan is Tobago and not Trinidad.  Brown-crested is on both.

The angle of the photo is tough to see the true size of the bill.  I don't see any obvious rufous edging on the tail or wings (but the primaries are mostly hidden).

[Trinidad two more unknown birds]

First looks like a female type Euphonia.  Per eBird, the two possible Euphonias would be Violaceous and Trinidad Euphonia, with Violaceous being decidedly more common.

I believe the second is a Speckled Tanager.

[Some kind of parrot seen at Iguazu Falls Argentina]

On 11/20/2018 at 4:55 PM, Fancy said:

I think Scaly-headed Parrot matches the best -- especially with the bright red vent, and some of the scaly patterning is visible in the head. It looks as if they vary quite a bit with the amount of blue in the head and white around the eye. 

Iguazu Falls is too far south for Blue-headed Parrots as well. 

Agree with Scaly-headed Parrot.

 

19 hours ago, Pigeon said:

Or a Blue headed Pionus. 

Blue-headed Pionus is just a different name for Blue-headed Parrot.  As Fancy said, we can rule that out by range and by appearance.

[Costa Rica Bird]

Tough one!  Not too sure you'll be able to get a confident ID.  Another guess could be an Ochre-bellied Flycatcher.

[What flycatcher? Sutton QC (july 2018)]

Agree with Willow/Alder.

[Female Painted Buntings]

2 hours ago, Metaquatic said:

Yes.  Female Painted Bunting.  My sister in Central Florida has several through the winter.

Would you mind explaining how you can tell female Painted Bunting from a first year male?  It's not easy, so any explanations would be helpful.