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When to visit SE Arizona (1 Viewer)

apbarr

Well-known member
Scotland
Advice needed on when is the best time to visit, main options are late April-early May or late August-early September.
It will be my first visit to Western USA and therefore most western species will be new to me. Any help greatly appreciated.
 
Hi Alex,

I've been there in summer, fall, and winter, and I don't think there's really a bad time to be there -- though of course there are good and bad times for particular species. Land bird migration should be in full swing during both the times you indicate. However, during spring migration of course, more birds will be singing and most should be in breeding plumage. If you want info about the timing of particular species: here's an eBird bar chart for the three counties in SE AZ: http://ebird.org/ebird/GuideMe?step...&continue.x=6&continue.y=13&continue=Continue

Best,
Jim
 
Thanks Jim, very useful chart but as you say both periods look great, potentially up to a couple of hundred lifers for me if I was very lucky
 
Based on living here, I would go for late April - early May. Spring migration is, in my opinion, a lot nicer than "fall" migration. And the weather is usually nicer at least in Southern Arizona.
 
Thanks for that, climate charts do seem to suggest that spring temps are slightly lower, still be a lot warmer than we have in Scotland though;)
 
Thanks for that, climate charts do seem to suggest that spring temps are slightly lower, still be a lot warmer than we have in Scotland though

Probably a bit warmer. But if you come in August or September you not only have the heat but the monsoon rains also. If it is a good monsoon season a lot of the dirt roads and high elevation locations can be impassable. Which could cut down on the birds you see.
 
Hi Alex,

It depends on what your main goals are. Seeing as it's your first trip to the Western states, you'll have absolutely plenty to keep you busy at any time of year, and thankfully SE Arizona is blessed with sensational year round birding. :t:

Late April/early May is usually a very pleasant time to be here. The birding is excellent and although still hotter than your average Scottish mid summer, it's something you can bird in quite comfortably. It's a popular time to visit for many birders, with spring migration in full swing and some of the rare Mexican summer visitors arriving.

Late August - like it is right now - can be really hot and humid, with the monsoon season rumbling on as it is this year. If you can deal with the heat it's a fantastic and truly exciting time to be here. Plus you will have the option of seeing more of the specialist SE Arizona species, some of which don't arrive until mid to late May. If you have set target species, this could be critical. For example:

Some of the hummingbirds, such as White-eared and Berylline, aren't always regular until midway through May.

Cordilleran Flycatcher, Brown-crested Flycatcher and Thick-billed Kingbird don't turn up until early May, Tropical Kingbird mid May, Sulphur-bellied Flycatcher late May/early June. Traditionally Rose-throated Becards don't arrive until early to mid May, but sadly none have been seen in SE Arizona in summer since 2007 (a few winter records though).

Botteri's Sparrow isn't usually seen before mid May, and even then it's difficult to detect until they sing in the monsoon season, July & August.

Two real stunners, Blue Grosbeak and Varied Bunting, aren't seen until late May or June.

If those would be important to you, it has to be late summer. Otherwise, spring will probably be your best bet. If you have the option on dates, make it more towards early May rather than late April to maximise your summer migrants, again if that's more important than pleasant weather.

Whatever time you come here, you should have a fantastic trip!
 
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