Monday, April 17, 2023

A Rare Treat on the Tuolumne River: Lawrence's Goldfinches

It's a bird I had seen only one time previously, and there was a good reason for it. The Lawrence's Goldfinch (Spinus lawrencei) is a fickle species. They have a somewhat limited range, mostly across central and southern California, southern Arizona, and northern Mexico.

Source: https://www.allaboutbirds.org/guide/Lawrences_Goldfinch/overview
They tend to be a nomadic species, following the availability of water and seeds, so they are rarely a sure thing if you happen to be looking for them. I saw them once at Turlock Lake in 2020, but nowhere else since then. Until late March that is.
Most of the bluffs above the Tuolumne River Parkway Trail where I walk most days are covered with a thick carpet of non-native grasses and weeds, but when they completed work on the Hickman Bridge last year, the new bridge abutments were planted with some native shrubs and wildflowers, and I had noticed a great many Lesser and American Goldfinches hanging out there, so I took a closer look. I wasn't really expecting to see any Lawrence's Goldfinches, but I knew it never hurts to look. And then I saw some strange coloration: gray.
The other goldfinches tend towards bright yellows and olive-green colors, so I started snapping pictures. I kind of knew I might not get another chance, given their nomadic ways. But a week later I was back, and so were the Lawrence's Goldfinches. There were at least three of them and possibly more, and they seemed happy with the site.

I don't know how long they will be sticking around, but I'll be enjoying watching them while they're here. It would be interesting to see if they'll nest in the area this summer.

I have a sense that bird numbers are up this year, no doubt due to the huge amount of precipitation with the accompanying growth of grasses and availability of insects (it has been a bit buggy on the trail these last few weeks, and the swallows and swifts are especially loving it). 
If you live in the area and want a chance to see them, it's not too hard to access the spot. They've mainly been around the planted areas beneath and on both sides of the new Hickman Bridge in Waterford. The River Park (Appling Park) on the east side of the bridge offers the closest parking, with a walking distance of only a hundred yards or so on level ground. They are supposedly the most active in the morning and evening hours (I've mostly seen them in the afternoon).

More info about these beautiful birds can be found at https://www.allaboutbirds.org/guide/Lawrences_Goldfinch/overview.