MORMON LAKE, Ariz. -- Bald eagle populations in Arizona and across the nation have quadrupled in the last decade, after once being on the brink of extinction.

A new report from the U.S. Fish and Wildlife Service found more than 315,000 bald eagles in the lower 48 states, including 70,000 nesting pairs, after years of conservation efforts and protections, including a ban on pesticides such as DDT.

John Kanter, senior wildlife biologist for the National Wildlife Federation, said the current numbers have exceeded biologists' expectations from the last few decades, after bald eagles reached an all-time low of slightly more than 400 nesting pairs in 1963.

"The thought now that there are many pairs nesting in the state, it's just, it's absolutely incredible," Kanter remarked. "I see eagles all the time. That's a recent phenomenon. "

Bald eagles were listed as endangered from 1973 until 2007.

Arizona wildlife officials report the number of nesting pairs in the state has grown from 11 in 1978 to 74 at the last count in 2019. Arizona closes camping areas and airspace over nesting sites during the mating season.

To avoid future declines, Kanter pointed out it's critical to continue monitoring bald eagles, and to be diligent in protecting birds from ingesting harmful chemicals and toxic substances.

He noted lead ammunition and fishing weights, which are particularly dangerous, are banned in some states, but not in Arizona.

"Birds like eagles and other fish-eaters die from ingesting that lead," Kanter explained. "And there's an easy practice that people can take right there to clean out the tackle box and switch to the nontoxic alternatives which are widely available."

While bald eagle populations are on the upswing, research shows other American bird populations are dropping. Nearly three billion birds have been lost in the last 50 years.

Kanter urged Congress to pass the Recovering America's Wildlife Act to protect species before they're on the brink of extinction.


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This winter, volunteers counted more than 335,000 Western monarch butterflies in an annual survey, a big improvement over the last few years, but still far short of historical numbers.

Observers only counted 2,000 of the iconic black-and-orange butterflies in 2020, and then 250,000 in 2021.

Rebeca Quiñonez-Piñón, senior manager of the Climate-Resilient Habitat Program, and monarch recovery strategist with the National Wildlife Federation, said it still represents a 90% decline in numbers over the past few decades.

"In the late '80s and the early '90s, the count of monarchs was very high," Quiñonez-Piñón explained. "One of the highest numbers that was recorded was in 1997, with 1.2 million monarchs."

She said experts would need to see an average of 500,000 monarchs over a period of five years in order to consider the monarch population stable. In California, the public can visit large clusters of monarch butterflies for a few more weeks at Pismo State Beach, in Pacific Grove near Monterey, and at Natural Bridges in Santa Cruz County.

This winter, 250 volunteers conducted the butterfly counts at 272 overwintering sites, coordinated by the Xerces Society. The biggest clusters of monarchs were found on private property in Santa Barbara County.

Quiñonez-Piñón said going forward, California needs to work to protect butterfly habitat and continue the fight against global warming.

"Habitat loss and fragmentation, which is completely exacerbated by climate change, and the heavy use of pesticides are the three top threats to the monarch butterfly," Quiñonez-Piñón outlined. "That's where we need to focus."

She and other experts noted people can do their part by planting butterfly-friendly gardens, filled with native nectar plants and native milkweed.

Reducing the number of wildlife-vehicle collisions is the goal of a bill before the New Mexico Legislature this session.

Sen. Mimi Stewart, D-Albuquerque, is a co-sponsor, after steering passage of the New Mexico Wildlife Corridors Act in 2019. Stewart said residential and commercial development combined with climate change have fragmented wildlife habitat, forcing animals to cross roads with heavy traffic in some areas.

"So, it's about a $20 million problem, between health and car accidents," Stewart pointed out. "It's hard to put a price on killing wildlife."

Eddy, Lincoln and Otero counties have been identified as having some of the most dangerous highways in the state for local wildlife, frequently killed by motorists. State data also shows between 2002 and 2018, more than 11,000 deer were involved in crashes, or about 671 each year.

The state's 2022 Wildlife Corridors Action Plan identified 11 safe-passage projects to reduce wildlife-vehicle collisions and restore habitat connectivity.

Jeremy Romero, regional connectivity director for the National Wildlife Federation, said the measure would create a $50 million dedicated fund to support implementation.

"Really, this bill is kind-of a next step to the Wildlife Corridors Action Plan, which was prioritized and developed via the first piece of legislation," Romero explained. "This is the most critical step, because without the funding, we can't accomplish these projects."

While expensive, Romero argued wildlife crossings can be an effective solution.

"I have a lot of friends and family that have hit wildlife in various different capacities, some having a little bit more damage than others," Romero noted. "You hear about it all the time, and it's a big issue not only across New Mexico, but the country."

He added it is estimated completing all 11 of the safe-passage projects would cost about $350 million.

Support for this reporting was provided by The Pew Charitable Trusts.

Two state agencies have teamed up to make safer wildlife migration a priority in Utah.

The Utah Wildlife Migration Initiative relies heavily on GPS tracking data received from mammals, birds and fish, which gives coordinators a good picture of where animals are spending time, the routes they take, and areas where safe migration routes are needed.

It is a joint project of the state's Division of Wildlife Resources and Department of Transportation.

Blair Stringham, wildlife migration initiative coordinator for the Utah Division of Wildlife Resources, said they have now completed more than a hundred projects, and for them to be effective, they have to align with animals' tendencies and behaviors.

"Some of the really cool things we have done though, we've been able to install overpasses, which are essentially bridges going over roadways so animals can move back and forth," Stringham explained. "They've been really successful, with a lot of different animal species."

Stringham pointed out they have also been able to install underpasses, as well as fencing projects to keep wildlife off roads. They have even found ways to help fish move from one stretch of river to other tributaries if they were cut off by roadways.

Stringham emphasized helping animals migrate can save their lives in the process. Even so, about 4,900 deer were killed last year due to vehicle collisions. Stringham acknowledged many people do not realize the material damage which results from these accidents can add up quickly. He added keeping wildlife off the roads keeps people safer, too, and the evidence shows the projects are helping.

"We tend to see a huge improvement in the number of collisions with wildlife when we do these kinds of projects," Stringham observed. "We've seen anywhere from 75% to 90% success on most of these."

The Utah Division of Wildlife Resources recently released an app, called the "Utah Roadkill Reporter." It allows anyone to report animals killed on the road as they come across them. Stringham stated it helps contractors locate and remove carcasses, and the data is also used to plan future projects to help prevent wildlife-vehicle collisions.