Sector 5a: Patagonia Lake State Park - East End Riparian

Sector 5a. PATAGONIA LAKE STATE PARK – EAST END RIPARIAN AREA
Size: 204 acres                                                                                                                                                                        
GENERAL: This is the smallest, but perhaps the most productive sector in the circle. Starting in 2019, it was officially split off from Sector 5b, which is the campground and back-country area. The sector starts just east of the East End Birding Trail kiosk, but not including any of the campsites. 
Walking is about 2-3 miles of mostly flat ground and at a slow pace.                                                                                                                  
NOTES: It covers all of the riparian and bottom-land mesquite groves and up the immediate slopes around same. It includes the lake-shore riparian stuff on the north side of the lake to the last larger drainage (see map). This north shore area is hard to access. The east circle edge is along the trail as you follow the creek up-stream east at GPS 31.501508 / -110.834603. This is about 100 yards after the trail makes a bend left (northeast) at the east end of a small clearing.          
Coordinate in the morning at the Visitors' Center to see who will count the birds at the East End bird feeders. An individual, possible one with limited mobility, may be designated to check the feeders periodically during the day.          
Pick up a free Volunteer Pass between 6:45am to 7:00am, or after 9:00am, at the Visitors Center (or the prior day) to avoid paying to get in to the park. Your names should also be on record at the park entrance pay station.
The lake surface and wet edges present a difficult situation, since the lake boat birders are counting lake surface and shores, and the land-based birders see parts of the lake surface. Record all birds seen from your sector, including those on and near the lake surface The compilers will later take the higher of the two (boat vs land sightings) of a given species.                                                                                               
TARGET BIRDS: Check eBird reports for the weeks prior to the count. Check the feeders near the start of the trail several times during the day, unless the feeder is delegated to another party, as explained above.
This sector is the place where trogons, Eastern Phoebe, catbird, Winter & Pacific Wrens show up most frequently. Cassin's and Plumbeous Vireos are likely. Look for warblers in mixed winter flocks. Look hard for Swamp Sparrows (often missed on the count and when "seen" are often misidentified by those not familiar with our very rufous Song Sparrows). Listen for Sora and Virginia Rail, especially early in the day. Try clapping your hands to get them to call. Be alert for Green Kingfishers. All three gnatcatchers are found here.
Black-capped Gnatcatchers are sometimes the most common of the three, especially at the riparian-mesquite border area and in the mesquite areas. For those not familiar with the species, it will not have a black cap. To ID it correctly, a careful look at the relative lengths of the underside-viewed white tail feathers is needed. (See illustrations in the "big" Sibley bird guide or see examples starting at:  
https://www.flickr.com/photos/sloalan/40250074545/in/photolist-24jL9Sv-24AZkbo-25C3vsJ-25sWnHk-25sWkcZ-22H5r5o-24BDqZQ-F2m7gX-24BDsbh-24BDsUm-24uVaN6-21JXDUS-HXctpt-22eqLBQ-22hyzWB-21RZZZ6-Zvwvhx-21RZYnt-DBFUd1-21GJNjs  


here are a lot of pics there that show the graduated white tail feathers. Blue-gray has much less graduation.
Compare with  https://www.flickr.com/photos/sloalan/7010926233/in/photolist-S5hgh7-Nzm1Rh-KZtU3w-Cm9Rrr-f6uyZE-bxJp9h-f6fk9T-bFUk8B-bsZtBY-bFwJoi-bFwQ7v-bsBXpU-bFwQ2z-bsBRM1-bFwJxF-bvDsne-bvDsCK-bvDsPP-boxowF-f6uz5U/