HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » The DU Lounge (Forum) » Yippie......my little yel... » Reply #14

Response to 3catwoman3 (Reply #13)

Tue Mar 31, 2020, 02:14 PM

14. From Sibley Guides:

→ Last Updated on March 17, 2020
Molt is the process of feather replacement. All birds do it; they have to grow new feathers once or twice a year to stay warm, dry, and airborne, and in many cases they grow differently colored feathers at different seasons to match their surroundings or to impress others of their species.

Among the small songbirds, virtually all species have a complete molt (replacing all of their feathers) in late summer, and in addition many species have a partial molt (replacing some of the body feathers but not the wing or tail feathers) in the spring.

American Goldfinch follows this pattern. Beginning in September, and continuing for six to eight weeks, they molt all of their feathers, ending up with a completely new and pristine set of feathers (and drab colors) as they head into the winter. In the spring, as they grow new body feathers the males especially transform into bright yellow breeding plumage, but the wing and tail feathers remain from the previous fall. As these wing feathers get older the pale buff edges fade to white and disintegrate, so that by the end of the summer the wings look essentially all black. And in September another complete molt begins.


I studied birds for one semester at a local college. It was the best time and money spent that Spring.

Reply to this post

Back to OP Alert abuse Link to post in-thread

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 20 replies Author Time Post
a kennedy Mar 2020 OP
Walleye Mar 2020 #1
In_The_Wind Mar 2020 #2
Walleye Mar 2020 #5
In_The_Wind Mar 2020 #8
Fresh_Start Mar 2020 #11
In_The_Wind Mar 2020 #15
Fresh_Start Mar 2020 #16
Bmoboy Mar 2020 #17
femmedem Mar 2020 #3
Walleye Mar 2020 #12
mnhtnbb Apr 2020 #20
Walleye Mar 2020 #4
a kennedy Mar 2020 #7
Walleye Mar 2020 #10
3catwoman3 Mar 2020 #6
In_The_Wind Mar 2020 #9
3catwoman3 Mar 2020 #13
LineLineLineLineNew Reply From Sibley Guides:
In_The_Wind Mar 2020 #14
Walleye Apr 2020 #19
Bmoboy Mar 2020 #18
Please login to view edit histories.